Chemical Properties of Methane (CAS 74-82-8)

InChI

InChI=1S/CH4/h1H4

InChI Key

VNWKTOKETHGBQD-UHFFFAOYSA-N

Formula

CH4

SMILES

C

Molecular Weight¹

16.04

CAS

74-82-8

Other Names

• Biogas
• CH4
• Fire Damp
• Marsh gas
• Methyl hydride
• R 50
• R 50 (refrigerant)
• carbane

• ω : Acentric Factor.
• PAff : Proton affinity (kJ/mol).
• T_ig : Autoignition Temperature (K).
• BasG : Gas basicity (kJ/mol).
• Δ_cH°_gas : Standard gas enthalpy of combustion (kJ/mol).
• C_p,gas : Ideal gas heat capacity (J/mol×K).
• C_p,liquid : Liquid phase heat capacity (J/mol×K).
• μ : Dipole Moment (debye).
• η : Dynamic viscosity (Pa×s).
• LFL : Lower Flammability Limit (% in Air).
• UFL : Upper Flammability Limit (% in Air).
• Δ_fG° : Standard Gibbs free energy of formation (kJ/mol).
• R_g : Radius of Gyration.
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_fusH : Enthalpy of fusion at a given temperature (kJ/mol).
• Δ_subH : Enthalpy of sublimation at a given temperature (kJ/mol).
• Δ_vapH : Enthalpy of vaporization at a given temperature (kJ/mol).
• IE : Ionization energy (eV).
• log₁₀WS : Log10 of Water solubility in mol/l.
• logP_oct/wat : Octanol/Water partition coefficient.
• McVol : McGowan's characteristic volume (ml/mol).
• NFPA Fire : NFPA Fire Rating.
• NFPA Health : NFPA Health Rating.
• P_c : Critical Pressure (kPa).
• P_triple : Triple Point Pressure (kPa).
• P_vap : Vapor pressure (kPa).
• ρ_c : Critical density (kg/m³).
• ρ_g : Gas Density (kg/m³).
• ρ_l : Liquid Density (kg/m³).
• S°_gas : Molar entropy at standard conditions (J/mol×K).
• c_sound,fluid : Speed of sound in fluid (m/s).
• γ : Surface Tension (N/m).
• Δ_vapS : Entropy of vaporization at a given temperature (J/mol×K).
• T_boil : Normal Boiling Point Temperature (K).
• T_c : Critical Temperature (K).
• λ_gas : Gas thermal conductivity (W/m×K).
• λ_liquid : Liquid thermal conductivity (W/m×K).
• T_fus : Normal melting (fusion) point (K).
• T_triple : Triple Point Temperature (K).
• U_Qi : UNIQUAC Qi Parameter.
• U_Ri : UNIQUAC Ri Parameter.
• V_c : Critical Volume (m³/kmol).
• V_COSTALD : COSTALD Characteristic Volume (m³/kmol).
• ω_SRK : SRK acentric factor.
• Z_c : Critical Compressibility.
• Z_ra : Rackett Parameter.
• ¹: Molecular weight from the IUPAC atomic weights tables.

Contents

1. Physical Properties
2. Temperature Dependent Properties
3. Datasets
4. Correlations
5. Similar Compounds
6. Mixtures
7. Sources

Physical Properties

Property	Value	Unit	Source
ω	[0.0072; 0.0110]
ω	0.0080		PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
ω	0.0072		Passut and Danner (1973), critical constants and acentric factors Compiled value
ω	0.0110		ChemSep v8.3 pure component data Compiled value
ω	0.0110		KDB
PAff	543.50	kJ/mol	NIST
Tig	813.15	K	KDB
BasG	520.60	kJ/mol	NIST
ΔcH°gas	[-891.80; -890.16]	kJ/mol
ΔcH°gas	-890.70 ± 0.40	kJ/mol	NIST
ΔcH°gas	-890.35 ± 0.30	kJ/mol	NIST
ΔcH°gas	-891.80 ± 1.10	kJ/mol	NIST
ΔcH°gas	-890.16 ± 0.30	kJ/mol	NIST
μ	[0.00; 0.00]	debye
μ	0.00	debye	ChemSep v8.3 pure component data Compiled value
μ	0.00	debye	KDB
LFL	5.00	% in Air	KDB
UFL	15.00	% in Air	KDB
ΔfG°	[-50.87; -50.49]	kJ/mol
ΔfG°	-50.49	kJ/mol	ChemSep v8.3 pure component data Compiled value
ΔfG°	-50.87	kJ/mol	KDB
Rg	1.1230		KDB
ΔfH°gas	[-74.90; -73.40]	kJ/mol
ΔfH°gas	-74.53 ± 0.06	kJ/mol	Active Thermochemical Tables 1.112, gas-phase enthalpies of formation Compiled value
ΔfH°gas	-74.52	kJ/mol	ChemSep v8.3 pure component data Compiled value
ΔfH°gas	-74.90	kJ/mol	KDB
ΔfH°gas	-74.60 ± 0.30	kJ/mol	NIST
ΔfH°gas	-74.50 ± 0.40	kJ/mol	NIST
ΔfH°gas	-74.85 ± 0.31	kJ/mol	NIST
ΔfH°gas	Outlier -73.40 ± 1.10	kJ/mol	NIST
IE	[12.51; 13.60]	eV
IE	12.61 ± 0.01	eV	NIST
IE	12.61 ± 0.01	eV	NIST
IE	12.60 ± 0.40	eV	NIST
IE	12.63 ± 0.02	eV	NIST
IE	Outlier 13.60	eV	NIST
IE	12.75 ± 0.02	eV	NIST
IE	12.82 ± 0.02	eV	NIST
IE	12.60	eV	NIST
IE	12.60	eV	NIST
IE	12.80	eV	NIST
IE	12.64	eV	NIST
IE	12.94 ± 0.04	eV	NIST
IE	12.51	eV	NIST
IE	12.51	eV	NIST
IE	12.62 ± 0.01	eV	NIST
IE	12.78	eV	NIST
IE	12.75	eV	NIST
IE	12.70	eV	NIST
IE	12.99 ± 0.05	eV	NIST
IE	12.75 ± 0.05	eV	NIST
IE	12.90	eV	NIST
IE	12.70	eV	NIST
IE	12.55 ± 0.05	eV	NIST
IE	12.70 ± 0.01	eV	NIST
IE	12.71 ± 0.02	eV	NIST
IE	13.00 ± 0.02	eV	NIST
IE	Outlier 13.60	eV	NIST
IE	Outlier 13.60 ± 0.10	eV	NIST
IE	Outlier 13.60	eV	NIST
log10WS	[-1.11; -0.90]
log10WS	-1.11		Aq. Solubility Prediction
log10WS	-0.90		Estimated Solubility
logPoct/wat	0.636		Crippen Calculated Property
McVol	24.950	ml/mol	McGowan Calculated Property
NFPA Fire	4		KDB
NFPA Health	1		KDB
Pc	[4399.20; 5760.00]	kPa
Pc	4599.00	kPa	IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 2 Compiled value
Pc	4600.15	kPa	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Pc	4604.32	kPa	Passut and Danner (1973), critical constants and acentric factors Compiled value
Pc	4599.00	kPa	ChemSep v8.3 pure component data Compiled value
Pc	4599.00	kPa	Air Liquide Gas Encyclopedia
Pc	4599.00	kPa	KDB
Pc	4599.00 ± 3.00	kPa	NIST
Pc	4595.00 ± 10.00	kPa	NIST
Pc	4599.20 ± 3.00	kPa	NIST
Pc	4604.00	kPa	NIST
Pc	4597.97 ± 0.10	kPa	NIST
Pc	4399.20 ± 2.00	kPa	NIST
Pc	4620.00 ± 40.00	kPa	NIST
Pc	4595.00 ± 2.00	kPa	NIST
Pc	4598.83	kPa	NIST
Pc	4595.70 ± 0.45	kPa	NIST
Pc	4626.00 ± 34.47	kPa	NIST
Pc	4620.00 ± 15.19	kPa	NIST
Pc	4608.00 ± 34.47	kPa	NIST
Pc	4630.00 ± 101.33	kPa	NIST
Pc	4640.00 ± 101.33	kPa	NIST
Pc	4620.42 ± 30.39	kPa	NIST
Pc	4620.00 ± 40.53	kPa	NIST
Pc	Outlier 5560.00 ± 1013.20	kPa	NIST
Pc	5070.00 ± 405.30	kPa	NIST
Pc	Outlier 5760.00 ± 1013.20	kPa	NIST
Pc	4740.00 ± 202.65	kPa	NIST
Ptriple	[9.30; 12.26]	kPa
Ptriple	11.69 ± 0.01	kPa	Staveley, Lobo and Calado (1981), triple points Compiled value
Ptriple	11.70	kPa	ChemSep v8.3 pure component data Compiled value
Ptriple	11.70	kPa	Air Liquide Gas Encyclopedia
Ptriple	11.70	kPa	KDB
Ptriple	11.69 ± 0.00	kPa	NIST
Ptriple	11.74 ± 0.01	kPa	NIST
Ptriple	11.69 ± 0.00	kPa	NIST
Ptriple	11.68 ± 0.06	kPa	NIST
Ptriple	11.74	kPa	NIST
Ptriple	11.74 ± 0.04	kPa	NIST
Ptriple	11.69 ± 0.00	kPa	NIST
Ptriple	11.65 ± 0.50	kPa	NIST
Ptriple	11.66 ± 0.02	kPa	NIST
Ptriple	11.67 ± 0.01	kPa	NIST
Ptriple	11.68 ± 0.01	kPa	NIST
Ptriple	11.69 ± 0.01	kPa	NIST
Ptriple	11.71 ± 0.01	kPa	NIST
Ptriple	11.66 ± 0.01	kPa	NIST
Ptriple	11.71 ± 0.01	kPa	NIST
Ptriple	11.67 ± 0.02	kPa	NIST
Ptriple	11.65	kPa	NIST
Ptriple	11.68 ± 0.01	kPa	NIST
Ptriple	11.74 ± 0.01	kPa	NIST
Ptriple	11.63 ± 0.13	kPa	NIST
Ptriple	Outlier 9.30 ± 0.26	kPa	NIST
Ptriple	12.26 ± 0.26	kPa	NIST
Ptriple	10.66	kPa	NIST
ρc	[145.02; 165.24]	kg/m3
ρc	162.70	kg/m3	Air Liquide Gas Encyclopedia
ρc	162.67 ± 0.05	kg/m3	NIST
ρc	162.65 ± 0.16	kg/m3	NIST
ρc	162.03	kg/m3	NIST
ρc	162.65 ± 0.03	kg/m3	NIST
ρc	163.47 ± 3.21	kg/m3	NIST
ρc	162.17 ± 1.60	kg/m3	NIST
ρc	160.39	kg/m3	NIST
ρc	161.36 ± 0.96	kg/m3	NIST
ρc	162.51 ± 1.60	kg/m3	NIST
ρc	165.24 ± 3.21	kg/m3	NIST
ρc	162.67 ± 0.80	kg/m3	NIST
ρc	162.51 ± 1.60	kg/m3	NIST
ρc	162.35 ± 1.60	kg/m3	NIST
ρc	159.94 ± 3.21	kg/m3	NIST
ρc	162.35 ± 0.96	kg/m3	NIST
ρc	162.35 ± 1.60	kg/m3	NIST
ρc	Outlier 145.02 ± 19.25	kg/m3	NIST
S°gas	188.66 ± 0.42	J/mol×K	NIST
Tboil	[109.20; 112.00]	K
Tboil	111.66	K	ChemSep v8.3 pure component data Compiled value
Tboil	111.67	K	Air Liquide Gas Encyclopedia
Tboil	111.67	K	KDB
Tboil	111.70	K	NIST
Tboil	111.65 ± 0.00	K	NIST
Tboil	111.60 ± 0.20	K	NIST
Tboil	111.70	K	NIST
Tboil	111.70 ± 0.30	K	NIST
Tboil	111.65	K	NIST
Tboil	111.65 ± 0.07	K	NIST
Tboil	112.00 ± 0.50	K	NIST
Tboil	112.00 ± 0.50	K	NIST
Tboil	112.00 ± 0.50	K	NIST
Tboil	111.50 ± 0.50	K	NIST
Tboil	110.20 ± 1.00	K	NIST
Tboil	Outlier 109.20 ± 1.00	K	NIST
Tc	[173.70; 199.70]	K
Tc	190.56	K	IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 2 Compiled value
Tc	190.60	K	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Tc	190.58	K	Passut and Danner (1973), critical constants and acentric factors Compiled value
Tc	190.56	K	ChemSep v8.3 pure component data Compiled value
Tc	190.56	K	Air Liquide Gas Encyclopedia
Tc	190.56	K	KDB
Tc	190.56 ± 0.01	K	NIST
Tc	190.55 ± 0.01	K	NIST
Tc	190.58	K	NIST
Tc	190.53 ± 0.05	K	NIST
Tc	190.55 ± 0.01	K	NIST
Tc	190.60	K	NIST
Tc	190.78 ± 0.40	K	NIST
Tc	190.55 ± 0.05	K	NIST
Tc	190.55	K	NIST
Tc	190.53 ± 0.00	K	NIST
Tc	190.78 ± 0.40	K	NIST
Tc	190.57 ± 0.10	K	NIST
Tc	190.60 ± 0.15	K	NIST
Tc	190.30 ± 0.40	K	NIST
Tc	190.59 ± 0.40	K	NIST
Tc	190.70 ± 0.40	K	NIST
Tc	191.07 ± 0.60	K	NIST
Tc	190.30 ± 0.50	K	NIST
Tc	190.30 ± 0.60	K	NIST
Tc	191.40 ± 1.00	K	NIST
Tc	Outlier 173.70 ± 20.00	K	NIST
Tc	Outlier 199.70 ± 10.00	K	NIST
Tc	197.50 ± 7.00	K	NIST
Tfus	[85.70; 91.20]	K
Tfus	90.75	K	Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) Compiled value
Tfus	90.69	K	ChemSep v8.3 pure component data Compiled value
Tfus	90.69	K	Air Liquide Gas Encyclopedia
Tfus	90.69	K	KDB
Tfus	90.83	K	Aq. Solubility Prediction
Tfus	Outlier 85.70 ± 0.20	K	NIST
Tfus	90.60 ± 0.30	K	NIST
Tfus	91.20 ± 2.00	K	NIST
Tfus	90.60 ± 0.20	K	NIST
Tfus	90.50 ± 0.20	K	NIST
Ttriple	[87.40; 90.80]	K
Ttriple	90.70	K	Staveley, Lobo and Calado (1981), triple points Compiled value
Ttriple	90.69	K	ChemSep v8.3 pure component data Compiled value
Ttriple	90.69	K	Air Liquide Gas Encyclopedia
Ttriple	90.69	K	KDB
Ttriple	90.68 ± 0.00	K	NIST
Ttriple	90.68 ± 0.02	K	NIST
Ttriple	90.68 ± 0.01	K	NIST
Ttriple	90.68 ± 0.01	K	NIST
Ttriple	90.67 ± 0.01	K	NIST
Ttriple	90.68 ± 0.01	K	NIST
Ttriple	90.67 ± 0.02	K	NIST
Ttriple	90.68 ± 0.03	K	NIST
Ttriple	90.68 ± 0.02	K	NIST
Ttriple	90.68 ± 0.00	K	NIST
Ttriple	90.67 ± 0.01	K	NIST
Ttriple	90.66 ± 0.05	K	NIST
Ttriple	Outlier 88.65 ± 0.20	K	NIST
Ttriple	90.64 ± 0.05	K	NIST
Ttriple	90.66 ± 0.06	K	NIST
Ttriple	90.67 ± 0.01	K	NIST
Ttriple	90.67	K	NIST
Ttriple	90.64 ± 0.05	K	NIST
Ttriple	90.67 ± 0.02	K	NIST
Ttriple	90.66 ± 0.01	K	NIST
Ttriple	90.67 ± 0.03	K	NIST
Ttriple	90.66 ± 0.02	K	NIST
Ttriple	90.35 ± 0.50	K	NIST
Ttriple	90.63	K	NIST
Ttriple	90.67 ± 0.10	K	NIST
Ttriple	90.68 ± 0.05	K	NIST
Ttriple	90.65 ± 0.15	K	NIST
Ttriple	90.25 ± 0.15	K	NIST
Ttriple	89.85 ± 0.20	K	NIST
Ttriple	90.00 ± 0.10	K	NIST
Ttriple	90.80 ± 1.00	K	NIST
Ttriple	Outlier 87.40	K	NIST
UQi	1.15		ChemSep v8.3 pure component data Compiled value
URi	1.12		ChemSep v8.3 pure component data Compiled value
Vc	[0.099; 0.100]	m3/kmol
Vc	0.099	m3/kmol	IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 2 Compiled value
Vc	0.099	m3/kmol	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Vc	0.099	m3/kmol	ChemSep v8.3 pure component data Compiled value
Vc	0.099	m3/kmol	KDB
Vc	0.099	m3/kmol	NIST
Vc	0.099	m3/kmol	NIST
Vc	Outlier 0.100 ± 0.001	m3/kmol	NIST
VCOSTALD	0.10	m3/kmol	Hankinson and Thomson (1979), COSTALD parameters Compiled value
ωSRK	0.01		Hankinson and Thomson (1979), COSTALD parameters Compiled value
Zc	[0.2860000; 0.2861960]
Zc	0.2860000		IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 2 Compiled value
Zc	0.2860000		ChemSep v8.3 pure component data Compiled value
Zc	0.2861960		KDB
Zra	[0.29; 0.29]
Zra	0.29		Hankinson and Thomson (1979), COSTALD parameters Compiled value
Zra	0.29		ChemSep v8.3 pure component data Compiled value
Zra	0.29		KDB

Cheméo can also estimate Enthalpy of vaporization at standard conditions for this compound, but it falls outside the models' validated range, so it is not shown here. Open the prediction tool to compute it on demand.

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	34.92 ± 0.25	J/mol×K	279.00	NIST
Cp,liquid	[54.09; 108.60]	J/mol×K	[100.00; 180.00]
Cp,liquid	54.09	J/mol×K	100.00	Zabransky, M., Ruzicka, V., Majer, V. and Domalski, E. (1997), Heat Capacity of Liquids: Critical Review and Recommended Values - Monograph No. 6, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD
Cp,liquid	55.28	J/mol×K	110.00	Zabransky, M., Ruzicka, V., Majer, V. and Domalski, E. (1997), Heat Capacity of Liquids: Critical Review and Recommended Values - Monograph No. 6, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD
Cp,liquid	56.68	J/mol×K	120.00	Zabransky, M., Ruzicka, V., Majer, V. and Domalski, E. (1997), Heat Capacity of Liquids: Critical Review and Recommended Values - Monograph No. 6, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD
Cp,liquid	58.74	J/mol×K	130.00	Zabransky, M., Ruzicka, V., Majer, V. and Domalski, E. (1997), Heat Capacity of Liquids: Critical Review and Recommended Values - Monograph No. 6, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD
Cp,liquid	61.45	J/mol×K	140.00	Zabransky, M., Ruzicka, V., Majer, V. and Domalski, E. (1997), Heat Capacity of Liquids: Critical Review and Recommended Values - Monograph No. 6, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD
Cp,liquid	64.71	J/mol×K	150.00	Zabransky, M., Ruzicka, V., Majer, V. and Domalski, E. (1997), Heat Capacity of Liquids: Critical Review and Recommended Values - Monograph No. 6, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD
Cp,liquid	69.61	J/mol×K	160.00	Zabransky, M., Ruzicka, V., Majer, V. and Domalski, E. (1997), Heat Capacity of Liquids: Critical Review and Recommended Values - Monograph No. 6, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD
Cp,liquid	81.91	J/mol×K	170.00	Zabransky, M., Ruzicka, V., Majer, V. and Domalski, E. (1997), Heat Capacity of Liquids: Critical Review and Recommended Values - Monograph No. 6, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD
Cp,liquid	108.60	J/mol×K	180.00	Zabransky, M., Ruzicka, V., Majer, V. and Domalski, E. (1997), Heat Capacity of Liquids: Critical Review and Recommended Values - Monograph No. 6, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD
ΔfusH	[0.94; 0.94]	kJ/mol	[90.69; 90.70]
ΔfusH	0.94	kJ/mol	90.69	Air Liquide Gas Encyclopedia
ΔfusH	0.94	kJ/mol	90.70	NIST
ΔsubH	[9.20; 10.00]	kJ/mol	[63.00; 84.00]
ΔsubH	9.70	kJ/mol	63.00	NIST
ΔsubH	9.70	kJ/mol	72.00	NIST
ΔsubH	9.20	kJ/mol	72.00	NIST
ΔsubH	9.62	kJ/mol	77.50	NIST
ΔsubH	10.00	kJ/mol	84.00	NIST
ΔvapH	[4.00; 8.70]	kJ/mol	[99.00; 180.00]
ΔvapH	8.50 ± 0.10	kJ/mol	99.00	NIST
ΔvapH	8.52	kJ/mol	99.54	NIST
ΔvapH	8.60	kJ/mol	101.00	NIST
ΔvapH	8.60	kJ/mol	105.00	NIST
ΔvapH	7.65	kJ/mol	108.15	Enthalpy of Vaporization Measurements of Liquid Methane, Ethane, and Methane + Ethane by Differential Scanning Calorimetry at Low Temperatures and High Pressures
ΔvapH	8.60	kJ/mol	109.00	NIST
ΔvapH	8.18	kJ/mol	111.60	KDB
ΔvapH	8.20	kJ/mol	111.67	Air Liquide Gas Encyclopedia
ΔvapH	8.17	kJ/mol	111.70	NIST
ΔvapH	8.20	kJ/mol	112.00	NIST
ΔvapH	8.05	kJ/mol	118.04	Enthalpy of Vaporization Measurements of Liquid Methane, Ethane, and Methane + Ethane by Differential Scanning Calorimetry at Low Temperatures and High Pressures
ΔvapH	7.91	kJ/mol	123.15	Enthalpy of Vaporization Measurements of Liquid Methane, Ethane, and Methane + Ethane by Differential Scanning Calorimetry at Low Temperatures and High Pressures
ΔvapH	7.72	kJ/mol	127.96	Enthalpy of Vaporization Measurements of Liquid Methane, Ethane, and Methane + Ethane by Differential Scanning Calorimetry at Low Temperatures and High Pressures
ΔvapH	7.50	kJ/mol	130.00	NIST
ΔvapH	8.40	kJ/mol	132.00	NIST
ΔvapH	7.62	kJ/mol	133.15	Enthalpy of Vaporization Measurements of Liquid Methane, Ethane, and Methane + Ethane by Differential Scanning Calorimetry at Low Temperatures and High Pressures
ΔvapH	8.10	kJ/mol	137.00	NIST
ΔvapH	8.50	kJ/mol	140.50	NIST
ΔvapH	8.60	kJ/mol	145.00	NIST
ΔvapH	8.50	kJ/mol	149.00	NIST
ΔvapH	5.90	kJ/mol	160.00	NIST
ΔvapH	8.70	kJ/mol	168.50	NIST
ΔvapH	4.00	kJ/mol	180.00	NIST
Pvap	[19.65; 3170.00]	kPa	[94.93; 178.93]
Pvap	19.65	kPa	94.93	Investigation on Vapor-Liquid Equilibrium of (Argon + Methane) at the Temperature Range of (95 to 135) K
Pvap	34.27	kPa	99.97	Investigation on Vapor-Liquid Equilibrium of (Argon + Methane) at the Temperature Range of (95 to 135) K
Pvap	55.54	kPa	104.84	Investigation on Vapor-Liquid Equilibrium of (Argon + Methane) at the Temperature Range of (95 to 135) K
Pvap	87.16	kPa	109.87	Investigation on Vapor-Liquid Equilibrium of (Argon + Methane) at the Temperature Range of (95 to 135) K
Pvap	88.20	kPa	110.01	Vapor-Liquid Equilibrium for the Mixture Nitrogen (N2) + Methane (CH4) in the Temperature Range of (110 to 125) K
Pvap	112.74	kPa	112.98	Vapor-Liquid Equilibrium for the Mixture Nitrogen (N2) + Methane (CH4) in the Temperature Range of (110 to 125) K
Pvap	132.11	kPa	114.99	Vapor-Liquid Equilibrium for the Mixture Nitrogen (N2) + Methane (CH4) in the Temperature Range of (110 to 125) K
Pvap	134.08	kPa	115.07	Vapor-Liquid Equilibrium for the Mixture Nitrogen (N2) + Methane (CH4) in the Temperature Range of (110 to 125) K
Pvap	153.92	kPa	117.00	Vapor-Liquid Equilibrium for the Mixture Nitrogen (N2) + Methane (CH4) in the Temperature Range of (110 to 125) K
Pvap	178.11	kPa	118.99	Vapor-Liquid Equilibrium for the Mixture Nitrogen (N2) + Methane (CH4) in the Temperature Range of (110 to 125) K
Pvap	190.62	kPa	119.94	Investigation on Vapor-Liquid Equilibrium of (Argon + Methane) at the Temperature Range of (95 to 135) K
Pvap	194.65	kPa	120.11	Vapor-Liquid Equilibrium for the Mixture Nitrogen (N2) + Methane (CH4) in the Temperature Range of (110 to 125) K
Pvap	204.78	kPa	120.96	Vapor-Liquid Equilibrium for the Mixture Nitrogen (N2) + Methane (CH4) in the Temperature Range of (110 to 125) K
Pvap	235.61	kPa	123.01	Vapor-Liquid Equilibrium for the Mixture Nitrogen (N2) + Methane (CH4) in the Temperature Range of (110 to 125) K
Pvap	267.36	kPa	124.92	Investigation on Vapor-Liquid Equilibrium of (Argon + Methane) at the Temperature Range of (95 to 135) K
Pvap	286.85	kPa	126.01	Vapor Liquid Equilibrium for the Mixture Methane (CH4) + Ethane (C2H6) over the Temperature Range (126.01 to 140.01) K
Pvap	324.94	kPa	127.99	Vapor Liquid Equilibrium for the Mixture Methane (CH4) + Ethane (C2H6) over the Temperature Range (126.01 to 140.01) K
Pvap	364.90	kPa	129.89	Investigation on Vapor-Liquid Equilibrium of (Argon + Methane) at the Temperature Range of (95 to 135) K
Pvap	367.76	kPa	130.02	Vapor Liquid Equilibrium for the Mixture Methane (CH4) + Ethane (C2H6) over the Temperature Range (126.01 to 140.01) K
Pvap	374.77	kPa	130.15	Vapor-Liquid Equilibrium for the Mixture Nitrogen (N2) + Methane (CH4) in the Temperature Range of (110 to 125) K
Pvap	413.65	kPa	132.01	Vapor Liquid Equilibrium for the Mixture Methane (CH4) + Ethane (C2H6) over the Temperature Range (126.01 to 140.01) K
Pvap	463.11	kPa	133.98	Vapor Liquid Equilibrium for the Mixture Methane (CH4) + Ethane (C2H6) over the Temperature Range (126.01 to 140.01) K
Pvap	486.82	kPa	134.87	Investigation on Vapor-Liquid Equilibrium of (Argon + Methane) at the Temperature Range of (95 to 135) K
Pvap	496.11	kPa	135.09	Vapor-Liquid Equilibrium for the Mixture Nitrogen (N2) + Methane (CH4) in the Temperature Range of (110 to 125) K
Pvap	517.90	kPa	135.99	Vapor Liquid Equilibrium for the Mixture Methane (CH4) + Ethane (C2H6) over the Temperature Range (126.01 to 140.01) K
Pvap	576.38	kPa	137.97	Vapor Liquid Equilibrium for the Mixture Methane (CH4) + Ethane (C2H6) over the Temperature Range (126.01 to 140.01) K
Pvap	641.51	kPa	140.01	Vapor Liquid Equilibrium for the Mixture Methane (CH4) + Ethane (C2H6) over the Temperature Range (126.01 to 140.01) K
Pvap	1567.00	kPa	159.61	Vapor-Liquid Equilibrium Data of the Methane + Tetrafluoromethane System at Temperatures from (159.61 to 178.93) K
Pvap	1695.00	kPa	161.58	Vapor-Liquid Equilibrium Data of the Methane + Tetrafluoromethane System at Temperatures from (159.61 to 178.93) K
Pvap	2276.00	kPa	169.38	Vapor-Liquid Equilibrium Data of the Methane + Tetrafluoromethane System at Temperatures from (159.61 to 178.93) K
Pvap	2672.00	kPa	173.90	Vapor-Liquid Equilibrium Data of the Methane + Tetrafluoromethane System at Temperatures from (159.61 to 178.93) K
Pvap	3170.00	kPa	178.93	Vapor-Liquid Equilibrium Data of the Methane + Tetrafluoromethane System at Temperatures from (159.61 to 178.93) K
ρg	[0.68; 1.82]	kg/m3	[111.67; 288.15]
ρg	1.82	kg/m3	111.67	Air Liquide Gas Encyclopedia
ρg	0.68	kg/m3	288.15	Air Liquide Gas Encyclopedia
ρl	[422.36; 425.00]	kg/m3	[111.67; 112.00]
ρl	422.36	kg/m3	111.67	Air Liquide Gas Encyclopedia
ρl	425.00	kg/m3	112.00	KDB
γ	0.02	N/m	100.00	KDB
ΔvapS	85.58	J/mol×K	99.54	NIST

Datasets

1. Molar heat capacity at constant pressure, J/K/mol (1)
2. Viscosity, Pa*s (1)
3. Mass density, kg/m3 (2)
4. Speed of sound, m/s (1)

Molar heat capacity at constant pressure, J/K/mol

Fixed		Measured
Temperature, K - Liquid	Pressure, kPa - Liquid	Molar heat capacity at constant pressure, J/K/mol - Liquid
108.15	4230.00	54.40
108.15	6300.00	54.11
118.15	4270.00	55.54
118.15	6350.00	55.11
128.15	4330.00	57.03
128.15	6400.00	56.66
143.15	4350.00	59.37
153.15	4340.00	63.24
153.15	6340.00	60.98
163.15	4390.00	67.70
163.15	6470.00	64.51
173.15	4380.00	77.87
173.15	6450.00	70.97
Reference

Viscosity, Pa*s

Fixed		Measured
Mass density, kg/m3 - Gas	Temperature, K - Gas	Viscosity, Pa*s - Gas
0.3440	291.93	0.0000
0.3440	292.96	0.0000
0.3440	297.08	0.0000
0.3440	323.86	0.0000
0.3440	350.55	0.0000
0.3440	378.15	0.0000
0.3440	405.88	0.0000
0.3440	433.83	0.0000
0.3440	461.85	0.0000
0.3440	490.13	0.0000
0.3440	518.83	0.0000
0.3440	542.60	0.0000
0.3440	565.38	0.0000
0.3440	594.08	0.0000
0.3440	623.33	0.0000
0.3440	652.41	0.0000
0.3440	682.14	0.0000
0.4980	289.05	0.0000
0.4980	290.41	0.0000
0.4980	296.43	0.0000
0.4980	296.57	0.0000
0.4980	323.43	0.0000
0.4980	350.64	0.0000
0.4980	378.25	0.0000
0.4980	406.03	0.0000
0.4980	434.02	0.0000
0.4980	461.75	0.0000
0.4980	490.15	0.0000
0.4980	518.80	0.0000
0.4980	542.36	0.0000
0.4980	565.10	0.0000
0.4980	593.84	0.0000
0.4980	623.05	0.0000
0.4980	652.07	0.0000
0.4980	681.93	0.0000
Reference

Mass density, kg/m3

Fixed		Measured
Pressure, kPa - Liquid	Temperature, K - Liquid	Mass density, kg/m3 - Liquid
185.50	105.00	432.098
478.95	105.00	432.339
973.88	105.00	432.743
1970.76	105.00	433.554
5044.56	105.00	435.981
479.33	115.00	417.827
973.28	115.00	418.319
1969.98	115.00	419.298
477.88	125.00	402.38
972.71	125.00	402.99
1970.40	125.00	404.194
5112.40	125.00	407.803
783.75	135.00	386.1
1001.19	135.00	386.441
2014.28	135.00	387.992
5208.85	135.00	392.557
Reference

Fixed		Measured
Temperature, K - Fluid (supercritical or subcritical phases)	Pressure, kPa - Fluid (supercritical or subcritical phases)	Mass density, kg/m3 - Fluid (supercritical or subcritical phases)
298.14	29958.00	212.508
298.14	124934.00	363.139
298.14	159617.00	385.731
298.14	49959.00	273.189
298.14	150062.00	380.039
298.14	170054.00	391.531
298.14	188059.00	400.837
298.14	185333.00	399.489
298.14	35056.00	232.422
298.14	99874.00	342.269
298.14	20012.00	157.172
298.14	186931.00	400.257
298.15	10010.00	76.08
298.15	79980.00	321.098
298.16	1012.00	6.665
298.16	66961.00	303.605
298.19	5009.00	35.316
298.25	14994.00	118.506
305.23	149862.00	376.248
305.23	79855.00	316.163
305.23	49968.00	267.232
305.23	9993.00	72.932
305.23	60012.00	287.019
305.23	124930.00	359.159
305.23	99904.00	337.939
305.24	6897.00	48.435
305.24	5001.00	34.173
305.24	1002.00	6.404
305.24	29976.00	205.443
305.24	34563.00	223.779
305.24	69988.00	302.917
305.24	15006.00	113.44
305.24	2000.00	13.031
305.24	20696.00	155.024
338.04	6905.00	42.093
338.05	34473.00	195.446
338.05	5000.00	29.983
338.06	70001.00	280.639
338.07	149542.00	359.787
338.07	124895.00	341.685
338.08	15026.00	95.246
338.08	59971.00	263.229
338.08	30005.00	177.38
338.08	2004.00	11.667
338.08	20687.00	130.132
338.08	1004.00	5.782
338.08	50031.00	241.969
338.09	164905.00	369.665
338.10	9969.00	62.054
338.10	80310.00	295.61
338.11	99908.00	318.744
338.12	179829.00	378.164
399.94	89964.00	274.637
399.97	59973.00	225.951
399.98	1002.00	4.86
399.98	30014.00	141.158
399.99	15027.00	74.789
400.00	50037.00	203.469
400.00	79920.00	260.652
400.01	6915.00	34.195
400.01	2001.00	9.744
400.01	10002.00	49.746
400.02	124882.00	312.062
400.02	149627.00	332.136
400.02	20675.00	101.642
400.03	13795.00	68.723
400.04	34510.00	157.64
400.04	69978.00	244.725
400.07	5005.00	24.61
400.09	99984.00	286.8
450.00	2009.00	8.61
450.01	20697.00	87.478
450.01	99932.00	264.608
450.02	119918.00	286.376
450.02	89981.00	251.923
450.03	59975.00	202.137
450.03	139476.00	304.187
450.05	30002.00	121.791
450.06	50036.00	179.955
450.06	69966.00	221.073
450.08	80008.00	237.571
450.09	6886.00	29.741
450.12	34492.00	136.647
Reference

Speed of sound, m/s

Operational condition: Frequency, MHz = 0.005 (Gas)

Fixed		Measured
Temperature, K - Gas	Pressure, kPa - Gas	Speed of sound, m/s - Gas
280.01	500.03	434.024
280.01	500.03	434.026
280.01	500.04	434.027
280.01	500.18	434.032
280.02	500.18	434.03
280.02	500.19	434.03
280.02	500.19	434.032
280.02	500.04	434.027
280.02	500.03	434.027
280.02	500.04	434.03
280.02	500.04	434.034
280.02	500.19	434.034
280.02	500.04	434.018
280.02	500.19	434.027
280.02	500.03	434.028
293.27	394.31	443.975
293.27	394.32	443.969
293.27	394.32	443.97
293.27	394.32	443.971
293.27	394.31	443.973
293.27	394.32	443.973
293.27	394.31	443.973
293.28	394.32	443.967
293.28	394.32	443.969
293.28	394.32	443.97
293.28	394.32	443.974
293.28	394.32	443.973
293.28	394.35	443.976
293.28	394.32	443.973
293.28	394.33	443.975
293.28	394.35	443.977
293.28	394.33	443.979
293.28	394.34	443.977
293.28	394.33	443.974
293.28	394.34	443.979
293.29	394.36	443.976
293.29	394.36	443.972
319.52	429.90	462.063
319.53	429.91	462.063
319.55	428.61	461.973
319.55	428.61	461.973
319.87	471.86	462.118
319.87	471.87	462.121
319.88	471.88	462.12
319.88	471.91	462.132
319.89	471.91	462.129
319.89	471.91	462.133
319.89	471.92	462.129
319.89	471.93	462.125
319.89	471.93	462.13
319.94	430.41	462.324
319.94	430.42	462.32
319.95	429.13	462.235
319.96	429.13	462.236
339.35	456.00	474.758
339.35	456.00	474.763
339.88	456.67	475.085
339.89	456.67	475.079
359.27	481.98	486.936
359.28	481.99	486.939
359.28	481.81	486.759
359.28	480.58	486.844
359.28	481.81	486.762
359.29	480.58	486.847
359.85	482.79	487.307
359.86	482.79	487.315
359.86	482.59	487.148
359.87	482.60	487.149
360.03	529.63	487.351
360.03	529.64	487.351
360.03	529.64	487.345
360.03	529.66	487.346
360.04	529.67	487.332
360.04	529.67	487.335
360.04	529.66	487.34
360.04	529.66	487.341
379.20	507.87	498.656
379.20	507.87	498.659
379.78	508.56	498.971
379.78	508.56	498.975
399.24	533.63	510.014
399.24	533.63	510.016
399.82	534.48	510.391
399.82	534.48	510.388
399.99	471.94	510.49
399.99	471.94	510.498
399.99	471.95	510.472
399.99	471.98	510.469
399.99	471.96	510.471
399.99	471.97	510.474
399.99	471.95	510.477
399.99	471.94	510.491
400.00	471.96	510.465
419.54	559.42	521.018
419.55	559.43	521.03
419.56	559.63	521.204
419.56	559.63	521.203
419.99	560.00	521.281
420.00	560.01	521.291
420.00	560.01	521.28
420.00	560.01	521.285
420.02	560.19	521.466
420.02	560.20	521.455
439.94	496.88	532.013
439.94	496.88	532.015
439.94	496.88	532.015
439.94	496.88	532.017
439.94	496.87	532.023
439.94	496.88	532.026
439.94	496.86	532.021
439.94	496.86	532.033
439.94	496.85	532.026
449.69	597.89	537.244
449.69	597.90	537.24
449.69	597.90	537.242
449.69	597.90	537.232
449.69	597.90	537.242
449.69	597.90	537.227
449.69	597.90	537.246
449.70	597.90	537.23
449.70	597.90	537.24
449.70	597.90	537.228
449.70	597.89	537.223
449.70	597.88	537.215
449.70	597.89	537.229
449.71	597.88	537.216
449.71	597.89	537.221
449.71	597.89	537.218
449.71	597.88	537.209
449.71	597.89	537.209
449.71	597.89	537.213
449.71	597.89	537.216
449.72	597.89	537.217
449.72	597.89	537.204
449.72	597.88	537.197
449.72	597.89	537.209
449.72	597.89	537.199
449.73	597.87	537.202
449.73	597.87	537.192
449.73	597.87	537.194
449.73	597.86	537.191
449.74	597.87	537.201
449.74	597.86	537.19
449.74	597.87	537.196
449.77	597.88	537.202
449.77	597.88	537.201
449.78	597.90	537.204
449.79	597.90	537.196
479.91	495.54	552.379
479.92	495.57	552.381
479.92	495.54	552.386
479.92	495.55	552.39
479.92	495.52	552.398
479.92	539.80	552.375
479.92	495.57	552.387
479.92	539.80	552.39
479.92	495.51	552.397
479.92	539.81	552.388
479.92	495.51	552.391
Reference

Correlations

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[33.15; 88.58]	J/mol×K	[10.00; 1500.00]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A + exp(B/T + C + D·T + E·T²) Y is Cp,gas in J/mol×K, T in K
Coefficient A			3.31519e+01
Coefficient B			-1.22000e+03
Coefficient C			5.18294e+00
Coefficient D			-3.84791e-04
Coefficient E			9.89640e-08
Temperature range, min.			10.00
Temperature range, max.			1500.00
Cp,gas	33.15	J/mol×K	10.00	Calculated Property
Cp,gas	33.31	J/mol×K	175.56	Calculated Property
Cp,gas	37.57	J/mol×K	341.11	Calculated Property
Cp,gas	46.69	J/mol×K	506.67	Calculated Property
Cp,gas	56.58	J/mol×K	672.22	Calculated Property
Cp,gas	65.41	J/mol×K	837.78	Calculated Property
Cp,gas	72.82	J/mol×K	1003.33	Calculated Property
Cp,gas	78.97	J/mol×K	1168.89	Calculated Property
Cp,gas	84.13	J/mol×K	1334.44	Calculated Property
Cp,gas	88.58	J/mol×K	1500.00	Calculated Property
Cp,gas	[35.64; 81.74]	J/mol×K	[298.00; 1300.00]	NIST
Equation			Y = A + B·t + C·t² + D·t³ + E/t², t = T/1000 Y is Cp,gas in J/mol×K, T in K
Coefficient A			-7.03029e-01
Coefficient B			1.08477e+02
Coefficient C			-4.25216e+01
Coefficient D			5.86279e+00
Coefficient E			6.78565e-01
Reference			Chase, 1998
Comment			F=-76.84376, G=158.7163, H=-74.87310; Data last reviewed in March, 1961
Temperature range, min.			298.00
Temperature range, max.			1300.00
Cp,gas	35.64	J/mol×K	298.00	Calculated Property
Cp,gas	41.03	J/mol×K	409.33	Calculated Property
Cp,gas	47.58	J/mol×K	520.67	Calculated Property
Cp,gas	54.05	J/mol×K	632.00	Calculated Property
Cp,gas	60.07	J/mol×K	743.33	Calculated Property
Cp,gas	65.54	J/mol×K	854.67	Calculated Property
Cp,gas	70.42	J/mol×K	966.00	Calculated Property
Cp,gas	74.73	J/mol×K	1077.33	Calculated Property
Cp,gas	78.49	J/mol×K	1188.67	Calculated Property
Cp,gas	81.74	J/mol×K	1300.00	Calculated Property
Cp,gas	[81.55; 106.41]	J/mol×K	[1300.00; 6000.00]	NIST
Equation			Y = A + B·t + C·t² + D·t³ + E/t², t = T/1000 Y is Cp,gas in J/mol×K, T in K
Coefficient A			8.58122e+01
Coefficient B			1.12647e+01
Coefficient C			-2.11415e+00
Coefficient D			1.38190e-01
Coefficient E			-2.64222e+01
Reference			Chase, 1998
Comment			F=-153.5327, G=224.4143, H=-74.87310; Data last reviewed in March, 1961
Temperature range, min.			1300.00
Temperature range, max.			6000.00
Cp,gas	81.55	J/mol×K	1300.00	Calculated Property
Cp,gas	92.20	J/mol×K	1822.22	Calculated Property
Cp,gas	97.57	J/mol×K	2344.44	Calculated Property
Cp,gas	100.77	J/mol×K	2866.67	Calculated Property
Cp,gas	102.78	J/mol×K	3388.89	Calculated Property
Cp,gas	104.07	J/mol×K	3911.11	Calculated Property
Cp,gas	104.90	J/mol×K	4433.33	Calculated Property
Cp,gas	105.46	J/mol×K	4955.56	Calculated Property
Cp,gas	105.91	J/mol×K	5477.78	Calculated Property
Cp,gas	106.41	J/mol×K	6000.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
Cp,liquid	[61.30; 1505.68]	J/mol×K	[88.71; 190.00]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A + exp(B/T + C + D·T + E·T²) Y is Cp,liquid in J/mol×K, T in K
Coefficient A			6.11570e+01
Coefficient B			5.03410e+03
Coefficient C			-5.58208e+01
Coefficient D			-2.29980e-01
Coefficient E			2.22430e-03
Temperature range, min.			88.71
Temperature range, max.			190.00
Cp,liquid	61.30	J/mol×K	88.71	Calculated Property
Cp,liquid	61.16	J/mol×K	99.96	Calculated Property
Cp,liquid	61.16	J/mol×K	111.22	Calculated Property
Cp,liquid	61.16	J/mol×K	122.47	Calculated Property
Cp,liquid	61.16	J/mol×K	133.73	Calculated Property
Cp,liquid	61.16	J/mol×K	144.98	Calculated Property
Cp,liquid	61.16	J/mol×K	156.24	Calculated Property
Cp,liquid	61.31	J/mol×K	167.49	Calculated Property
Cp,liquid	71.14	J/mol×K	178.75	Calculated Property
Cp,liquid	1505.68	J/mol×K	190.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
η	[0.0002267; 0.0000232]	Pa×s	[88.15; 190.00]	ChemSep v8.3 pure component data Compiled value
Equation			Y = exp(A + B/T + C·ln(T) + D·T^E) Y is η in Pa×s, T in K
Coefficient A			-4.53280e+01
Coefficient B			7.24390e+02
Coefficient C			6.59170e+00
Coefficient D			-1.03730e-04
Coefficient E			2.00000e+00
Temperature range, min.			88.15
Temperature range, max.			190.00
η	0.0002267	Pa×s	88.15	Calculated Property
η	0.0001583	Pa×s	99.47	Calculated Property
η	0.0001196	Pa×s	110.78	Calculated Property
η	0.0000942	Pa×s	122.10	Calculated Property
η	0.0000757	Pa×s	133.42	Calculated Property
η	0.0000611	Pa×s	144.73	Calculated Property
η	0.0000490	Pa×s	156.05	Calculated Property
η	0.0000389	Pa×s	167.37	Calculated Property
η	0.0000303	Pa×s	178.68	Calculated Property
η	0.0000232	Pa×s	190.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
ΔvapH	[8.72; 0.24]	kJ/mol	[90.67; 190.55]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A·(1 − Tr)^(B + C·Tr + D·Tr² + E·Tr³), Tr = T/Tc Y is ΔvapH in kJ/mol, T in K
Coefficient A			1.44180e+01
Coefficient B			2.30550e+00
Coefficient C			-5.41990e+00
Coefficient D			5.65800e+00
Coefficient E			-2.12860e+00
Critical temperature, Tc (K)			1.90560e+02
Temperature range, min.			90.67
Temperature range, max.			190.55
ΔvapH	8.72	kJ/mol	90.67	Calculated Property
ΔvapH	8.44	kJ/mol	101.77	Calculated Property
ΔvapH	8.13	kJ/mol	112.87	Calculated Property
ΔvapH	7.77	kJ/mol	123.96	Calculated Property
ΔvapH	7.33	kJ/mol	135.06	Calculated Property
ΔvapH	6.79	kJ/mol	146.16	Calculated Property
ΔvapH	6.14	kJ/mol	157.26	Calculated Property
ΔvapH	5.30	kJ/mol	168.35	Calculated Property
ΔvapH	4.11	kJ/mol	179.45	Calculated Property
ΔvapH	0.24	kJ/mol	190.55	Calculated Property

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 4590.83]	kPa	[76.30; 190.56]	The Yaws Handbook of Vapor Pressure
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			1.37434e+01
Coefficient B			-1.00267e+03
Coefficient C			-1.78900e+00
Temperature range, min.			76.30
Temperature range, max.			190.56
Pvap	1.33	kPa	76.30	Calculated Property
Pvap	9.45	kPa	89.00	Calculated Property
Pvap	40.73	kPa	101.69	Calculated Property
Pvap	126.28	kPa	114.39	Calculated Property
Pvap	311.31	kPa	127.08	Calculated Property
Pvap	650.07	kPa	139.78	Calculated Property
Pvap	1199.04	kPa	152.47	Calculated Property
Pvap	2010.90	kPa	165.17	Calculated Property
Pvap	3130.16	kPa	177.86	Calculated Property
Pvap	4590.83	kPa	190.56	Calculated Property
Pvap	[4.35; 4658.83]	kPa	[83.65; 191.03]	ChemSep v8.3 pure component data Compiled value
Equation			Y = exp(A + B/T + C·ln(T) + D·T^E) Y is Pvap in kPa, T in K
Coefficient A			3.30807e+01
Coefficient B			-1.33731e+03
Coefficient C			-3.58005e+00
Coefficient D			3.20698e-05
Coefficient E			2.00000e+00
Temperature range, min.			83.65
Temperature range, max.			191.03
Pvap	4.35	kPa	83.65	Calculated Property
Pvap	21.27	kPa	95.58	Calculated Property
Pvap	71.28	kPa	107.51	Calculated Property
Pvap	184.79	kPa	119.44	Calculated Property
Pvap	399.88	kPa	131.37	Calculated Property
Pvap	759.42	kPa	143.31	Calculated Property
Pvap	1309.90	kPa	155.24	Calculated Property
Pvap	2102.37	kPa	167.17	Calculated Property
Pvap	3195.27	kPa	179.10	Calculated Property
Pvap	4658.83	kPa	191.03	Calculated Property
Pvap	[12.42; 4483.54]	kPa	[90.99; 189.99]	NIST
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			1.37913e+01
Coefficient B			-1.02011e+03
Coefficient C			-4.90000e-01
Reference			Prydz and Goodwin, 1972
Comment			Coefficents calculated by NIST from author's data.
Temperature range, min.			90.99
Temperature range, max.			189.99
Pvap	12.42	kPa	90.99	Calculated Property
Pvap	42.14	kPa	101.99	Calculated Property
Pvap	112.58	kPa	112.99	Calculated Property
Pvap	252.48	kPa	123.99	Calculated Property
Pvap	496.15	kPa	134.99	Calculated Property
Pvap	880.31	kPa	145.99	Calculated Property
Pvap	1440.95	kPa	156.99	Calculated Property
Pvap	2210.84	kPa	167.99	Calculated Property
Pvap	3217.74	kPa	178.99	Calculated Property
Pvap	4483.54	kPa	189.99	Calculated Property
Pvap	[24.26; 89.59]	kPa	[96.89; 110.19]	NIST
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			9.21617e+00
Coefficient B			-2.89709e+02
Coefficient C			-4.88230e+01
Reference			Regnier, 1972
Comment			Coefficents calculated by NIST from author's data.
Temperature range, min.			96.89
Temperature range, max.			110.19
Pvap	24.26	kPa	96.89	Calculated Property
Pvap	29.04	kPa	98.37	Calculated Property
Pvap	34.40	kPa	99.85	Calculated Property
Pvap	40.36	kPa	101.32	Calculated Property
Pvap	46.95	kPa	102.80	Calculated Property
Pvap	54.16	kPa	104.28	Calculated Property
Pvap	62.03	kPa	105.76	Calculated Property
Pvap	70.55	kPa	107.23	Calculated Property
Pvap	79.74	kPa	108.71	Calculated Property
Pvap	89.59	kPa	110.19	Calculated Property
Pvap	[15.80; 73.16]	kPa	[93.04; 107.84]	NIST
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			1.33604e+01
Coefficient B			-9.28186e+02
Coefficient C			-5.47900e+00
Reference			Cutler and Morrison, 1965
Comment			Coefficents calculated by NIST from author's data.
Temperature range, min.			93.04
Temperature range, max.			107.84
Pvap	15.80	kPa	93.04	Calculated Property
Pvap	19.21	kPa	94.68	Calculated Property
Pvap	23.19	kPa	96.33	Calculated Property
Pvap	27.81	kPa	97.97	Calculated Property
Pvap	33.14	kPa	99.62	Calculated Property
Pvap	39.25	kPa	101.26	Calculated Property
Pvap	46.22	kPa	102.91	Calculated Property
Pvap	54.14	kPa	104.55	Calculated Property
Pvap	63.09	kPa	106.20	Calculated Property
Pvap	73.16	kPa	107.84	Calculated Property
Pvap	[90.85; 4562.80]	kPa	[110.00; 190.50]	NIST
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			1.43235e+01
Coefficient B			-1.18972e+03
Coefficient C			1.12230e+01
Reference			Hestermans and White, 1961
Comment			Coefficents calculated by NIST from author's data.
Temperature range, min.			110.00
Temperature range, max.			190.50
Pvap	90.85	kPa	110.00	Calculated Property
Pvap	178.32	kPa	118.94	Calculated Property
Pvap	320.93	kPa	127.89	Calculated Property
Pvap	538.02	kPa	136.83	Calculated Property
Pvap	850.38	kPa	145.78	Calculated Property
Pvap	1279.38	kPa	154.72	Calculated Property
Pvap	1846.03	kPa	163.67	Calculated Property
Pvap	2570.30	kPa	172.61	Calculated Property
Pvap	3470.48	kPa	181.56	Calculated Property
Pvap	4562.80	kPa	190.50	Calculated Property

Property	Value	Unit	Temperature (K)	Source
ρl	[450.83; 151.90]	kg/m3	[90.68; 191.04]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A / B^(1 + (1 − T/C)^D) Y is ρl in kg/m3, T in K
Coefficient A			3.03844e+01
Coefficient B			2.36030e-01
Coefficient C			1.91050e+02
Coefficient D			2.19740e-01
Temperature range, min.			90.68
Temperature range, max.			191.04
ρl	450.83	kg/m3	90.68	Calculated Property
ρl	436.63	kg/m3	101.83	Calculated Property
ρl	421.48	kg/m3	112.98	Calculated Property
ρl	405.15	kg/m3	124.13	Calculated Property
ρl	387.32	kg/m3	135.28	Calculated Property
ρl	367.44	kg/m3	146.44	Calculated Property
ρl	344.58	kg/m3	157.59	Calculated Property
ρl	316.85	kg/m3	168.74	Calculated Property
ρl	279.01	kg/m3	179.89	Calculated Property
ρl	151.90	kg/m3	191.04	Calculated Property

Property	Value	Unit	Temperature (K)	Source
γ	[0.02; 9.87e-06]	N/m	[90.00; 191.71]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A + exp(B/T + C + D·T + E·T²) Y is γ in N/m, T in K
Coefficient A			-4.07030e-02
Coefficient B			-6.95230e+00
Coefficient C			-2.31140e+00
Coefficient D			-5.55650e-03
Coefficient E			5.75950e-06
Comment			Range stopped where the equation turns negative; ChemSep gives it to 193.15 K.
Temperature range, min.			90.00
Temperature range, max.			191.71
γ	0.02	N/m	90.00	Calculated Property
γ	0.02	N/m	101.30	Calculated Property
γ	0.01	N/m	112.60	Calculated Property
γ	0.01	N/m	123.90	Calculated Property
γ	0.01	N/m	135.20	Calculated Property
γ	0.01	N/m	146.50	Calculated Property
γ	0.00	N/m	157.80	Calculated Property
γ	0.00	N/m	169.10	Calculated Property
γ	0.00	N/m	180.41	Calculated Property
γ	9.87e-06	N/m	191.71	Calculated Property

Property	Value	Unit	Temperature (K)	Source
λgas	[0.01; 0.08]	W/m×K	[90.69; 600.00]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A·T^B / (1 + C/T + D/T²) Y is λgas in W/m×K, T in K
Coefficient A			7.47050e-06
Coefficient B			1.44320e+00
Coefficient C			-5.75690e+01
Coefficient D			5.87820e+02
Temperature range, min.			90.69
Temperature range, max.			600.00
λgas	0.01	W/m×K	90.69	Calculated Property
λgas	0.02	W/m×K	147.28	Calculated Property
λgas	0.02	W/m×K	203.87	Calculated Property
λgas	0.03	W/m×K	260.46	Calculated Property
λgas	0.04	W/m×K	317.05	Calculated Property
λgas	0.05	W/m×K	373.64	Calculated Property
λgas	0.05	W/m×K	430.23	Calculated Property
λgas	0.06	W/m×K	486.82	Calculated Property
λgas	0.07	W/m×K	543.41	Calculated Property
λgas	0.08	W/m×K	600.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
λliquid	[0.22; 0.09]	W/m×K	[90.69; 180.00]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A + exp(B/T + C + D·T + E·T²) Y is λliquid in W/m×K, T in K
Coefficient A			1.15670e-02
Coefficient B			-4.60410e+01
Coefficient C			1.04350e-01
Coefficient D			-1.21330e-02
Coefficient E			-5.17160e-06
Temperature range, min.			90.69
Temperature range, max.			180.00
λliquid	0.22	W/m×K	90.69	Calculated Property
λliquid	0.21	W/m×K	100.61	Calculated Property
λliquid	0.19	W/m×K	110.54	Calculated Property
λliquid	0.17	W/m×K	120.46	Calculated Property
λliquid	0.16	W/m×K	130.38	Calculated Property
λliquid	0.14	W/m×K	140.31	Calculated Property
λliquid	0.13	W/m×K	150.23	Calculated Property
λliquid	0.12	W/m×K	160.15	Calculated Property
λliquid	0.10	W/m×K	170.08	Calculated Property
λliquid	0.09	W/m×K	180.00	Calculated Property

Similar Compounds

Find more compounds similar to Methane.

Mixtures

• Carbon dioxide + Methane
• Methane + 1,2-Ethanediol
• Methane + Water
• Methane + Decane
• Methane + 1-Butanol
• Methane + Ethanol
• 2-PROPANOL, 1,1,1,3,3,3-HEXAFLUORO- + Methane + Water
• Propylene Glycol + Methane
• Methane + Ethane
• Methane + Methyl Alcohol
• Methane + Hydrogen sulfide
• Phenol, 2-methoxy- + Methane
• Methane + Octadecane
• helium + Methane
• Furan, tetrahydro-2,5-dimethyl- + Methane + Furan, tetrahydro-2,5-dimethyl-, cis-
• 2-Propanol + Methane
• Butane + Methane
• Methane + Ethane + Pentane
• Methane + Triethylene glycol
• sodium chloride + Methane + Water

Find more mixtures with Methane.

Sources

• Air Liquide Gas Encyclopedia
• Active Thermochemical Tables 1.112, gas-phase enthalpies of formation ChEDL chemicals 1.5.2, from Active Thermochemical Tables (ATcT), version 1.112, Argonne National Laboratory; Ruscic, B. et al. Active Thermochemical Tables: Thermochemistry for the 21st Century. J. Phys.: Conf. Ser. 2005, 16, 561.
• Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) ChEDL chemicals 1.5.2, from Bradley, J.-C.; Williams, A.; Lang, A. Jean-Claude Bradley Open Melting Point Dataset. Figshare, 2014 (CC0).
• Hankinson and Thomson (1979), COSTALD parameters ChEDL chemicals 1.5.2, from Hankinson, R. W.; Thomson, G. H. A New Correlation for Saturated Densities of Liquids and Their Mixtures. AIChE J. 1979, 25, 653-663.
• IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 2 ChEDL chemicals 1.5.2, from Ambrose, D.; Tsonopoulos, C. Vapor-Liquid Critical Properties of Elements and Compounds. 2. Normal Alkanes. J. Chem. Eng. Data 1995, 40, 531-546.
• Passut and Danner (1973), critical constants and acentric factors ChEDL chemicals 1.5.2, from Passut, C. A.; Danner, R. P. Acentric Factor. A Valuable Correlating Parameter for the Properties of Hydrocarbons. Ind. Eng. Chem. Process Des. Dev. 1973, 12, 365-368.
• PSRK revision IV (2005), critical constants and acentric factors of 1000 components ChEDL chemicals 1.5.2, from Horstmann, S.; Jabłoniec, A.; Krafczyk, J.; Fischer, K.; Gmehling, J. PSRK Group Contribution Equation of State: Comprehensive Revision and Extension IV, Including Critical Constants and α-Function Parameters for 1000 Components. Fluid Phase Equilib. 2005, 227, 157-164.
• Staveley, Lobo and Calado (1981), triple points ChEDL chemicals 1.5.2, from Staveley, L. A. K.; Lobo, L. Q.; Calado, J. C. G. Triple-Points of Low Melting Substances and Their Use in Cryogenic Work. Cryogenics 1981, 21, 131-144.
• ChemSep v8.3 pure component data Converted from ChemSep v8.3 pure component data, H. Kooijman and R. Taylor (2021, 2022), Artistic License 2.0; see how the values differ.
• Crippen Method
• Thermal Conductivity of Carbon Dioxide Methane Mixtures at Temperatures Between 300 and 425K and at Pressures up to 12 MPa
• Measurements of the Calorific Value of Methane with the New GERG Reference Calorimeter
• The Experimental Study of Temperature Dependence of Binary Diffusion Coefficients of Gases at Different Pressures
• Binary Diffusion Coefficients for Gas Mixtures of Propane with Methane and Carbon Dioxide Measured in a Loschmidt Cell Combined with Holographic Interferometry
• Liquid-liquid equilibrium data of water with neohexane, methylcyclohexane, tert-butyl methyl ether, n-heptane and vapor -liquid-liquid equilibrium with methane
• Viscosity, density, interfacial tension and compositional data for near critical mixtures of methane + butane and methane + decane systems at 310.95K
• Establishing benchmarks for the Second Industrial Fluids Simulation Challenge
• Vapor liquid equilibrium of methane and methane + nitrogen and an equimolar hexane + decane mixture under isothermal conditions
• Measurement and modeling of hydrocarbon dew points for five synthetic natural gas mixtures
• Low-pressure solubilities and thermodynamics of solvation of eight gases in 1-butyl-3-methylimidazolium hexafluorophosphate
• High-pressure vapor liquid equilibria of systems containing ethylene glycol, water and methane Experimental measurements and modeling
• High pressure phase equilibria in methane +waxy systems 1. Methane + heptadecane
• Measurement of VLE (TPx or TPxy data) for hydrogen sulfide + (dimethylsulfide or ethylmethylsulfide or carbon disulfide) and methane solubilities in (dimethylsulfide or ethylmethylsulfide or methylmercaptan or ethylmercaptan)
• Measurement of the triethylene glycol solubility in supercritical methane at pressures up to 9MPa
• Methane and carbon dioxide solubility in 1,2-propylene glycol at temperatures ranging from 303 to 423 K and pressures up to 12 MPa
• High pressure phase behaviour of methane in 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide
• Gas gas experimental interfacial tension measurement
• Experimental data on binary and ternary mixtures of perfluoro-1,3-dimethylcyclohexane with normal alkanes at 373.15 K
• Capillary constant and surface tension of methane-nitrogen solutions: 1. Experiment
• Measurement and equation of state prediction of vapor-liquid equilibrium and physical properties for the system methane + n-octadecane
• Solubilities of several non-polar gases in mixtures water + 2,2,2-trifluoroethanol at 298.15 K and 101.33 kPa
• Surface tensions of aqueous solutions of lithium dodecyl sulfate, sodium oleate, and dodecylbenzene sulfonic acid in contact with methane under hydrate-forming conditions
• Vapor liquid equilibrium measurement and thermodynamic modeling of binary systems (methane + n-tetradecane)
• Development and testing of a new apparatus for the measurement of high-pressure low-temperature phase equilibria
• Experimental and thermodynamic modeling study on (vapor + liquid) equilibria and physical properties of ternary systems (methane + n-decane + n-tetradecane)
• Surface tension of ethane-methane solutions: 1. Experiment and thermodynamic analysis of the results
• High pressure phase equilibria of binary mixtures of light hydrocarbons in the ionic liquid 1-hexyl-3-methylimidazoliumtetracyanoborate
• In situ Raman spectroscopic study of diffusion coefficients of methane in liquid water under high pressure and wide temperatures
• Effect of impurities in captured CO2 on liquid-vapor equilibrium
• Isothermal vapor-liquid equilibrium in CH4/H2/N2 system at a cryogenic temperature range from 100.0 K to 125.0 K
• Solubility of carbon dioxide, nitrous oxide and methane in ionic liquids at pressures close to atmospheric
• Solubility of CO2/CH4 gas mixtures in ionic liquids
• Phase equilibrium data for the hydrogen sulphide + methane system at temperatures from 186 to 313 K and pressures up to about 14 MPa
• Solubility of hydrogen sulfide in aqueous solutions of N-methyldiethanolamine at high pressures
• An experimental investigation of the phase equilibrium of the binary system (methane + water) at low temperatures: Solubility of methane in water and three-phase (vapour + liquid + hydrate) equilibrium
• Physical data for a process to separate krypton from air by selective absorption in an ionic liquid
• Measurement of vapor-liquid-liquid phase equilibrium - Equipment and results
• Effects of association with impurities in ammonia purification
• Accurate density measurements on a binary mixture (carbon dioxide + methane) at the vicinity of the critical point in the supercritical state by a single-sinker densimeter
• Measurement and modelling of interfacial tension in methane/water and methane/brine systems at reservoir conditions
• Interfacial tension measurements in water-methane system at temperatures from 278.15 K to 298.15 K and pressures up to 10 MPa
• Anomalous nucleation near a fluid phase boundary created by a rapid heat pulse
• Separation of methane/ethylene gas mixtures efficiently by using ZIF- 67/water-ethylene glycol slurry
• High pressure vapor-liquid equilibria for binary methane and protic ionic liquid based on propionate anions
• Experimental and modelling study of the densities of the hydrogen sulphide + methane mixtures at 253, 273 and 293 K and pressures up to 30 MPa.
• Density and phase equilibrium of the binary system methane + n-decane under high temperatures and pressures
• An experimental investigation on the solubility of methane in 1-octanol and n-dodecane at ambient temperatures
• Surface tension, density and composition in the methane-pentane system at high pressure
• Low viscosity protic ionic liquid for CO2/CH4 separation: Thermophysical and high-pressure phase equilibria for diethylammonium butanoate
• Vapor - liquid equilibrium of the carbon dioxide/methane mixture at three isotherms
• Experimental P(rho)T-x measurements of liquid methane-ethane-nitrogen mixtures
• Guaiacol and its mixtures: new data and predictive models Part 1: Phase equilibrium
• Interface light-scattering on a methane-decane system in the near-critical region at 37.8 deg.C (100 deg.F)
• High-pressure experimental vapour-liquid-liquid equilibrium measurements and modelling for natural gas processing: Equipment validation, and the system CH4 + nC6H14 + H2O
• Hydrogen sulfide solubility in 50 wt% and 70 wt% aqueous methyldiethanolamine at temperatures from 283 to 393 K and total pressures from 500 to 10000 kPa
• A re-entrant resonator for the measurement of phase boundaries: dew points for {0.4026CH4 + 0.5974C3H8}
• Solubility of carbon dioxide, ethane, methane, oxygen, nitrogen, hydrogen, argon, and carbon monoxide in 1-butyl-3-methylimidazolium tetrafluoroborate between temperatures 283 K and 343 K and at pressures close to atmospheric
• Measurement of the (pressure, density, temperature) relation of two (methane + nitrogen) gas mixtures at temperatures between 240 and 400 K and pressures up to 20 MPa using an accurate single-sinker densimeter
• Speeds of sound in {(1 - x)CH4 + xN2} with x = (0.10001, 0.19999, and 0.5422) at temperatures between 170 K and 400 K and pressures up to 30 MPa
• Solubility of methane in water and in a medium for the coltivation of methanotrophs bacteria
• Solubility of methane and carbon dioxide in ethylene glycol at pressures up to 14 MPa and temperatures ranging from (303 to 423) K
• Phase equilibrium measurements and thermodynamic modeling of methane alcohol systems at ambient temperature
• Solubility of gases in 1-alkyl-3methylimidazolium alkyl sulfate ionic liquids: Experimental determination and modeling
• Measurement of the (pressure, density, temperature) relation of a (methane + nitrogen) gaseous mixture using an accurate single-sinker densimeter
• Experimental and modeling investigations of solubility and saturated liquid densities and viscosities for binary systems (methane +, ethane +, and carbon dioxide + 2-propanol)
• Solubility of carbon dioxide, methane, and ethane in 1-butanol and saturated liquid densities and viscosities
• Low pressure methane solubility in lithium-ion batteries based solvents and electrolytes as a function of temperature. Measurement and prediction
• Phase equilibrium measurements of (methane + benzene) and (methane + methylbenzene) at temperatures from (188 to 348) K and pressures to 13 MPa
• Viscosity of {xCO2 + (1-x)CH4} with x = 0.5174 for temperatures between (229 and 348) K and pressures between (1 and 32) MPa
• Spherical resonator for vapor-phase speed of sound and measurements of 1,1,1,2,2,3,3-heptafluoro-3-methoxypropane (RE347mcc) and trans-1,3,3,3-tetrafluoropropene [R1234ze(E)]
• Development of a special single-sinker densimeter for cryogenic liquid mixtures and first results for a liquefied natural gas (LNG)
• Experimental determination of (p,.rho.,T) data for binary mixtures of methane and helium
• Measurement and modelling of high pressure density and interfacial tension of (gas + n-alkane) binary mixtures
• Application of a two-sinker densimeter for phase-equilibrium measurements: A new technique for the detection of dew points and measurements on the (methane + propane) system
• Solubility of methane in n-hexane and a petroleum benzine at ambient temperatures
• Accurate experimental (p, .rho., T) values and virial coefficients for the (methane and helium) binary system
• Density characteristics of CO2-CH4 binary mixtures at temperatures from (300 to 308.15) K and pressures from (2 to 18) MPa
• Surface tension and critical point measurements of methane + propane mixtures
• Solubility of carbon dioxide and methane in 1-hexyl-3-methylimidazolium nitrate ionic liquid, experimental and thermodynamic modeling
• Solubility of gases in fluoroorganic alcohols. Part III. Solubilities of several non-polar gases in water + 1,1,1,3,3,3-hexafluoropropan-2-ol at 298.15 K and 101.33 kPa
• Solubilities of gases in cycloethers. The solubility of 13 nonpolar gases in 2,5-dimethyltetrahydrofuran at 273.15 to 303.15 K and 101.32 kPa
• A novel technique based in a cylindrical microwave resonator for high pressure phase equilibrium determination
• Speeds of sound for (CH4 + He) mixtures from p = (0.5 to 20) MPa at T = (273.16 to 375) K
• Gas solubility of H2S and CO2 in aqueous solutions of N-methyldiethanolamine
• Measurement and Calculation of CO2 Frost Points in CH4 + CO2/CH4 + CO2 + N2/CH4 + CO2 + C2H6 Mixtures at Low Temperatures
• Phase Equilibrium Measurements and Modeling of 1-Propanethiol +1-Butanethiol + CH4 in Methane Ternary System at 303, 336, and 368 K and Pressure Up to 9 MPa
• Reference Quality Vapor-Liquid Equilibrium Data for the Binary Systems Methane + Ethane, + Propane, + Butane and, + 2-Methylpropane, at Temperatures from (203 to 273) K and Pressures to 9 MPa
• Viscosity and dew point measurements of {xCH4 + (1- x)C4H10} for x = 0.9484 with a vibrating-wire viscometer.
• Experimental Measurement and Modeling of the Solubility of Methane in Methanol and Ethanol
• Density Measurements of Methane + Propane Mixtures at Temperatures between (256 and 422) K and Pressures from (24 to 35) MPa
• Accurate p-.rho.-T Data for a Synthetic Residual Natural Gas Mixture (0.95 CH4 + 0.04 C2H6 + 0.01 C3H8) at Temperatures between (135 and 500) K at Pressures to 200 MPa
• Density Measurements for Ethane, Carbon Dioxide, and Methane + Nitrogen Mixtures from 300 to 470 K up to 137 MPa Using a Vibrating Tube Densimeter
• Solubility of Mercury in Liquid Hydrocarbons and Hydrocarbon Mixtures
• Solubility Measurement and Modeling of Methane in Methanol and Ethanol Aqueous Solutions
• Viscosities and Densities of Binary Mixtures of Hexadecane with Dissolved Methane or Carbon Dioxide at Temperatures from (298 to 473) K and at Pressures up to 120 MPa
• Interfacial Tension and Related Properties of Ionic Liquids in CH4 and CO2 at Elevated Pressures: Experimental Data and Molecular Dynamics Simulation
• Enthalpy of Vaporization Measurements of Liquid Methane, Ethane, and Methane + Ethane by Differential Scanning Calorimetry at Low Temperatures and High Pressures
• Water Solubility at Saturation for CO2 CH4 Mixtures at 323.2 K and 9.000 MPa
• Binary Vapor-Liquid Equilibrium Data for Perfluorooctane with Light Gases (Oxygen, Nitrogen, and Methane)
• Solubility of Methane and Carbon Dioxide in the Aqueous Phase of the Ternary (Methane + Carbon Dioxide + Water) Mixture: Experimental Measurements and Molecular Dynamics Simulations
• Density and Compressibility of Multicomponent n-Alkane Mixtures up to 463 K and 140 MPa
• Accurate Experimental (p, rho, and T) Data for the Introduction of Hydrogen into the Natural Gas Grid (II): Thermodynamic Characterization of the Methane-Hydrogen Binary System from 240 to 350 K and Pressures up to 20 MPa
• Ternary Vapor-Liquid Equilibrium Measurements and Modeling of Ethylene Glycol (1) + Water (2) + Methane (3) Systems at 6 and 12.5 MPa
• Investigation on Vapor-Liquid Equilibrium of (Argon + Methane) at the Temperature Range of (95 to 135) K
• Density Characteristics of the CO2-CH4 Binary System: Experimental Data at 313-353 K and 3-18 MPa and Modeling from the PC-SAFT EoS
• Measurement and Prediction of Hydrocarbon Dew Points of Synthetic Natural Gas Mixtures
• Density Data of Two (H2 + CO2) Mixtures and a (H2 + CO2 + CH4) Mixture by a Modified Burnett Method at Temperature 673 K and Pressures up to 25 MPa
• Solubility of Carbon Dioxide and Methane in Aqueous Methyldiethanolamine Solutions
• Solubilities of Nonpolar Gases in Triethylene Glycol Dimethyl Ether, Tetraethylene Glycol Dimethyl Ether, Dimethyl Carbonate, and Diethyl Carbonate at 298.15 K and 101.33 kPa Partial Pressure of Gas
• Determination and Study on the Solubility of Methane in Heptane + Cyclohexane and Heptane + Ethanol at High Pressures
• Experimental Data on Binary and Ternary Mixtures of Perfluoromethylcyclohexane with Methane and n-Decane at 373.15 K
• Measurements of the Speed of Sound for Mixtures of Methane + Butane with a Particular Focus on the Critical State
• Vibrating Wire Viscometer with Wire Diameters of (0.05 and 0.15) mm: Results for Methylbenzene and Two Fluids with Nominal Viscosities at T = 298 K and p = 0.01 MPa of (14 and 232) mPa*s at Temperatures between (298 and 373) K and Pressures below 40 MPa
• Solubilities of Nonpolar Gases in Dimethyl Carbonate and Diethyl Carbonate
• Surface Tensions of Aqueous Solutions of Sodium Alkyl Sulfates in Contact with Methane under Hydrate-Forming Conditions
• Solubility Study of Methane and Ethane In Promising Physical Solvents for Natural Gas Sweetening Operations
• Solubilities of Gases in 1,1,3,3-Tetramethylguanidium Lactate at Elevated Pressures
• Determination and Study of the Solubility of Methane in Mixtures of Methanol plus Various Hydrocarbons at High Pressures
• Solubility of Methane in Methyldiethanolamine
• Measurement of Carbon Dioxide Freezing in Mixtures of Methane, Ethane, and Nitrogen in the Solid-Vapor Equilibrium Region
• Vapor-Liquid Equilibrium Data of the Methane + Tetrafluoromethane System at Temperatures from (159.61 to 178.93) K
• Accurate P-rho-T Data and Phase Boundary Determination for a Synthetic Residual Natural Gas Mixture
• Influence of Compressed Carbon Dioxide on the Capillarity of the Gas-Crude Oil-Reservoir Water System
• Equilibrium Phase Densities, Interfacial Tensions for the Ethane + n-Pentane System at 294.15 K
• Vapor-Liquid Equilibria Measurements of the Methane + Pentane and Methane + Hexane Systems at Temperatures from (173 to 330) K and Pressures to 14 MPa
• Experimental Determination of the Solubilities of CO2 and CH4 in Diethyl Methylphosphonate
• Measurement and Modeling of CO2 Frost Points in the CO2 Methane Systems
• Equilibrium Phase Densities, Vapor Phase Compositions, and Interfacial Tensions for the Methane + Ethane + n-Pentane System at 294.15 K
• Reference Viscosities of Gaseous Methane and Hydrogen Sulfide at Low Density in the Temperature Range from (292 to 682) K
• Interfacial Tension between Methane and Octane at Elevated Pressure at Five Temperatures from (274.2 to 282.2) K
• Experimental Studies of Solubility of Elemental Sulfur in Methane at 363.15 K for Pressure Ranging from (4 to 25) MPa
• Phase Equilibria of Three Binary Mixtures: Methanethiol + Methane, Methanethiol + Nitrogen, and Methanethiol + Carbon Dioxide
• Vapor-Liquid Equilibrium for the Mixture Nitrogen (N2) + Methane (CH4) in the Temperature Range of (110 to 125) K
• Determination of CO2 Solubility in Saturated Liquid CH4 + N2 and CH4 + C2H6 Mixtures above Atmospheric Pressure
• Vapor Liquid Phase Equilibria and Physical Properties Measurements for Ternary Systems (Methane + Decane + Hexadecane)
• Solubility Measurements and Saturated Liquid Properties of Ternary Systems (Methane + Decane + Octadecane) at 295 K
• Isobaric Heat Capacity Measurements of Liquid Methane, Ethane, and Propane by Differential Scanning Calorimetry at High Pressures and Low Temperatures
• Vapor Liquid Equilibrium for the Mixture Methane (CH4) + Ethane (C2H6) over the Temperature Range (126.01 to 140.01) K
• Vapor Liquid Equilibrium of Methane with Water and Methanol. Measurements and Modeling
• Isobaric Heat Capacity Measurements of Liquid Methane + Propane, Methane + Butane, and a Mixed Refrigerant by Differential Scanning Calorimetry at High Pressures and Low Temperatures
• Improved Methods for Gas Mixture Viscometry Using a Vibrating Wire Clamped at Both Ends
• Isothermal Vapor Liquid Equilibrium Data and Thermodynamic Modeling for Binary Systems of Perfluorobutane (R610) + (Methane or Hydrogen Sulfide) at (293, 313, and 333) K
• PvT Measurements of trans-1,3,3,3-Tetrafluoroprop-1-ene + Methane and trans-1,3,3,3-Tetrafluoroprop-1-ene + Nitrogen Binary Pairs
• Vapor-Phase (p, n, T, x) Behavior and Virial Coefficients for the (Methane + Propane) System
• Solubility of Methane in Propylene Carbonate
• Viscosity of {xCH4 + (1-x)C3H8} with x = 0.949 for Temperatures Between (200 and 423) K and Pressures Between (10 and 31) MPa
• Experimental Study: The Impact of Dissolved Water on the Viscosity of Reservoir Fluids at HPHT Conditions
• Vapor Liquid Equilibrium Measurements and Thermodynamic Modeling of the System (Methane + Cyclohexane + Ethanol)
• High-Pressure Solubility Data of Methane in Aniline and Aqueous Aniline Systems
• Determination of the Relative Permittivity and Density within the Gas Phase and Liquid Volume Fraction Formed within the Two-Phase Region for (0.4026 CH4 + 0.5974 C3H8) with a Radio Frequency Re-entrant Cavity
• Critical Temperatures and Pressures of Several Binary and Ternary Mixtures Concerning the Alkylation of 2-Methylpropane with 1-Butene in the Presence of Methane or Carbon Dioxide
• Experimental Study of Solubility of Natural Gas Components in Aqueous Solutions of Ethylene Glycol at Low-Temperature and High-Pressure Conditions
• Vapor-Liquid Equilibria and Saturated Liquid Densities in Binary Mixtures of Nitrogen, Methane, and Ethane and Their Correlation Using the VTPR and PSRK GCEOS
• Solubility of the Single Gases Methane and Xenon in the Ionic Liquid [bmim][CH3SO4]
• Experimental Measurements of Vapor Liquid Equilibria of the H2O + CO2 + CH4 Ternary System
• Solubility of Methane in an Aqueous Methyldiethanolamine Solution (Mass Fraction 50 %)
• Solubilities of Carbon Dioxide, Methane, and Ethane in Sodium Chloride Solution Containing Gas Hydrate
• Solubility of Methane in Tetrahydrofuran + Ethanol at High Pressures
• Vapor-Liquid Equilibrium Measurements and Modeling of the Propyl Mercaptan + Methane + Water System
• Accurate PVT Data for Methane from (300 to 450) K up to 180 MPa
• Experimental Measurement and Thermodynamic Modeling for the Solubility of Methane in Water and Hexadecane
• Vapour Liquid Equilibria Measurements of Methane + 2- Methylpropane (Isobutane) at Temperatures from (150 to 250) K and Pressures to 9 MPa
• KDB
• Aqueous Solubility Prediction Method
• Estimated Solubility Method
• McGowan Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure
• Zabransky, M., Ruzicka, V., Majer, V. and Domalski, E. (1997), Heat Capacity of Liquids: Critical Review and Recommended Values - Monograph No. 6, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD

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