Chemical Properties of Butane, 2-methyl- (CAS 78-78-4)

InChI

InChI=1S/C5H12/c1-4-5(2)3/h5H,4H2,1-3H3

InChI Key

QWTDNUCVQCZILF-UHFFFAOYSA-N

Formula

C5H12

SMILES

CCC(C)C

Molecular Weight¹

72.15

CAS

78-78-4

Other Names

• 1,1,2-Trimethylethane
• 1,1-Dimethylpropane
• 2-methylbutane
• Ethyldimethylmethane
• Exxsol isopentane S
• Isoamylhydride
• Methylbutane
• NSC 119476
• iso-C5H12
• iso-Pentane
• isopentane

• ω : Acentric Factor.
• Δ_cH°_gas : Standard gas enthalpy of combustion (kJ/mol).
• Δ_cH°_liquid : Standard liquid 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).
• Δ_fG° : Standard Gibbs free energy of formation (kJ/mol).
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_fH°_liquid : Liquid phase enthalpy of formation at standard conditions (kJ/mol).
• Δ_fusH° : Enthalpy of fusion at standard conditions (kJ/mol).
• Δ_fusH : Enthalpy of fusion at a given temperature (kJ/mol).
• Δ_vapH° : Enthalpy of vaporization at standard conditions (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).
• P_c : Critical Pressure (kPa).
• P_triple : Triple Point Pressure (kPa).
• P_vap : Vapor pressure (kPa).
• n₀ : Refractive Index.
• ρ_c : Critical density (kg/m³).
• ρ_l : Liquid Density (kg/m³).
• I_np : Non-polar retention indices.
• I_p : Polar retention indices.
• Δ_fusS : Entropy of fusion at a given temperature (J/mol×K).
• S°_liquid : Liquid phase molar entropy at standard conditions (J/mol×K).
• 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	[0.2270; 0.2290]
ω	0.2270		PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
ω	0.2273		Passut and Danner (1973), critical constants and acentric factors Compiled value
ω	0.2290		ChemSep v8.3 pure component data Compiled value
ΔcH°gas	[-3528.60; -3527.60]	kJ/mol
ΔcH°gas	-3528.40 ± 0.92	kJ/mol	NIST
ΔcH°gas	-3528.60 ± 0.63	kJ/mol	NIST
ΔcH°gas	-3527.60 ± 3.50	kJ/mol	NIST
ΔcH°liquid	[-3504.40; -3503.30]	kJ/mol
ΔcH°liquid	-3504.40 ± 0.84	kJ/mol	NIST
ΔcH°liquid	-3503.30 ± 0.75	kJ/mol	NIST
μ	0.13	debye	ChemSep v8.3 pure component data Compiled value
ΔfG°	-14.05	kJ/mol	ChemSep v8.3 pure component data Compiled value
ΔfH°gas	[-154.50; -153.70]	kJ/mol
ΔfH°gas	-153.70	kJ/mol	ChemSep v8.3 pure component data Compiled value
ΔfH°gas	-153.70 ± 0.59	kJ/mol	NIST
ΔfH°gas	-154.10 ± 0.96	kJ/mol	NIST
ΔfH°gas	-154.50 ± 0.84	kJ/mol	NIST
ΔfH°liquid	[-179.30; -178.20]	kJ/mol
ΔfH°liquid	-178.20 ± 0.88	kJ/mol	NIST
ΔfH°liquid	-179.30 ± 0.84	kJ/mol	NIST
ΔfusH°	5.18	kJ/mol	Joback Calculated Property
ΔvapH°	[24.80; 25.22]	kJ/mol
ΔvapH°	25.22	kJ/mol	NIST
ΔvapH°	24.80	kJ/mol	NIST
ΔvapH°	24.80 ± 0.10	kJ/mol	NIST
ΔvapH°	25.00	kJ/mol	NIST
ΔvapH°	25.00	kJ/mol	NIST
IE	[10.18; 11.00]	eV
IE	10.32 ± 0.05	eV	NIST
IE	10.21	eV	NIST
IE	10.18	eV	NIST
IE	10.22	eV	NIST
IE	10.30 ± 0.10	eV	NIST
IE	10.50 ± 0.05	eV	NIST
IE	10.32	eV	NIST
IE	10.32	eV	NIST
IE	10.94	eV	NIST
IE	Outlier 11.00 ± 0.10	eV	NIST
log10WS	[-3.18; -3.18]
log10WS	-3.18		Aq. Solubility Prediction
log10WS	-3.18		Estimated Solubility
logPoct/wat	2.052		Crippen Calculated Property
McVol	81.310	ml/mol	McGowan Calculated Property
Pc	[3270.00; 3410.60]	kPa
Pc	3380.00	kPa	IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 5 Compiled value
Pc	3380.20	kPa	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Pc	3381.19	kPa	Passut and Danner (1973), critical constants and acentric factors Compiled value
Pc	3381.00	kPa	ChemSep v8.3 pure component data Compiled value
Pc	3380.00 ± 50.00	kPa	NIST
Pc	3381.00 ± 50.66	kPa	NIST
Pc	3410.60 ± 10.13	kPa	NIST
Pc	3335.50 ± 66.70	kPa	NIST
Pc	Outlier 3270.00 ± 98.07	kPa	NIST
Ptriple	1.21e-07	kPa	ChemSep v8.3 pure component data Compiled value
ρc	[234.27; 235.93]	kg/m3
ρc	235.93 ± 3.61	kg/m3	NIST
ρc	234.27 ± 4.33	kg/m3	NIST
ρc	235.93 ± 2.16	kg/m3	NIST
ρc	235.93 ± 7.21	kg/m3	NIST
ρc	234.27 ± 4.33	kg/m3	NIST
Inp	[461.00; 480.00]
Inp	475.00		NIST
Inp	474.20		NIST
Inp	469.00		NIST
Inp	470.00		NIST
Inp	470.00		NIST
Inp	475.80		NIST
Inp	475.40		NIST
Inp	474.90		NIST
Inp	468.00		NIST
Inp	474.90		NIST
Inp	474.50		NIST
Inp	475.40		NIST
Inp	475.00		NIST
Inp	475.00		NIST
Inp	475.60		NIST
Inp	475.00		NIST
Inp	476.00		NIST
Inp	474.37		NIST
Inp	470.00		NIST
Inp	470.00		NIST
Inp	471.00		NIST
Inp	471.00		NIST
Inp	472.00		NIST
Inp	477.00		NIST
Inp	476.00		NIST
Inp	474.00		NIST
Inp	475.00		NIST
Inp	476.00		NIST
Inp	476.00		NIST
Inp	474.00		NIST
Inp	474.00		NIST
Inp	474.00		NIST
Inp	474.00		NIST
Inp	474.00		NIST
Inp	478.00		NIST
Inp	477.00		NIST
Inp	474.00		NIST
Inp	474.00		NIST
Inp	475.00		NIST
Inp	473.00		NIST
Inp	475.00		NIST
Inp	474.00		NIST
Inp	476.00		NIST
Inp	476.00		NIST
Inp	465.00		NIST
Inp	Outlier 461.00		NIST
Inp	477.50		NIST
Inp	477.00		NIST
Inp	464.90		NIST
Inp	466.10		NIST
Inp	465.35		NIST
Inp	465.39		NIST
Inp	467.00		NIST
Inp	465.11		NIST
Inp	465.18		NIST
Inp	465.00		NIST
Inp	466.00		NIST
Inp	474.00		NIST
Inp	475.00		NIST
Inp	474.00		NIST
Inp	475.00		NIST
Inp	475.00		NIST
Inp	475.00		NIST
Inp	476.00		NIST
Inp	480.00		NIST
Inp	474.00		NIST
Inp	465.00		NIST
Inp	466.20		NIST
Inp	Outlier 464.00		NIST
Inp	Outlier 464.00		NIST
Inp	475.00		NIST
Inp	476.00		NIST
Inp	475.00		NIST
Inp	475.00		NIST
Inp	475.00		NIST
Inp	475.00		NIST
Inp	477.00		NIST
Inp	466.00		NIST
Inp	472.00		NIST
Inp	474.00		NIST
Inp	467.00		NIST
Inp	476.00		NIST
Inp	476.00		NIST
Inp	476.00		NIST
Inp	476.00		NIST
Inp	475.00		NIST
Inp	467.00		NIST
Inp	465.00		NIST
Inp	475.80		NIST
Inp	474.50		NIST
Inp	471.00		NIST
Inp	474.00		NIST
Inp	477.00		NIST
Inp	477.50		NIST
Ip	[467.00; 471.00]
Ip	467.00		NIST
Ip	471.00		NIST
Ip	467.00		NIST
S°liquid	[254.40; 261.04]	J/mol×K
S°liquid	260.41	J/mol×K	NIST
S°liquid	261.04	J/mol×K	NIST
S°liquid	254.40	J/mol×K	NIST
Tboil	[300.00; 303.70]	K
Tboil	301.15	K	Isobaric vapor-liquid equilibrium for four binary systems of thiophene
Tboil	301.15	K	Isobaric vapor-liquid equilibrium for four binary systems of 3-methylthiophene
Tboil	300.99	K	ChemSep v8.3 pure component data Compiled value
Tboil	Outlier 303.20	K	NIST
Tboil	301.00	K	NIST
Tboil	301.00	K	NIST
Tboil	301.20 ± 1.50	K	NIST
Tboil	302.10 ± 3.00	K	NIST
Tboil	300.20 ± 0.60	K	NIST
Tboil	300.00 ± 4.00	K	NIST
Tboil	301.00 ± 0.20	K	NIST
Tboil	301.05 ± 0.50	K	NIST
Tboil	300.90 ± 1.00	K	NIST
Tboil	301.10 ± 0.10	K	NIST
Tboil	301.15 ± 1.00	K	NIST
Tboil	301.05 ± 0.50	K	NIST
Tboil	300.86 ± 0.50	K	NIST
Tboil	301.10 ± 0.07	K	NIST
Tboil	301.10 ± 0.07	K	NIST
Tboil	301.05 ± 0.70	K	NIST
Tboil	301.05 ± 0.50	K	NIST
Tboil	300.95 ± 0.70	K	NIST
Tboil	301.10 ± 0.07	K	NIST
Tboil	301.00 ± 0.70	K	NIST
Tboil	301.05 ± 0.70	K	NIST
Tboil	301.10 ± 0.20	K	NIST
Tboil	301.15 ± 0.50	K	NIST
Tboil	301.04 ± 0.06	K	NIST
Tboil	300.95 ± 0.50	K	NIST
Tboil	301.05 ± 0.30	K	NIST
Tboil	301.10 ± 0.10	K	NIST
Tboil	301.00 ± 0.02	K	NIST
Tboil	301.10 ± 0.07	K	NIST
Tboil	301.10 ± 0.30	K	NIST
Tboil	301.10 ± 0.07	K	NIST
Tboil	300.15 ± 2.00	K	NIST
Tboil	301.10 ± 0.10	K	NIST
Tboil	301.60 ± 0.60	K	NIST
Tboil	301.25 ± 0.70	K	NIST
Tboil	301.15 ± 1.00	K	NIST
Tboil	301.10 ± 0.10	K	NIST
Tboil	301.00 ± 0.02	K	NIST
Tboil	301.07 ± 0.05	K	NIST
Tboil	301.15 ± 0.50	K	NIST
Tboil	301.00 ± 0.30	K	NIST
Tboil	300.85 ± 0.50	K	NIST
Tboil	301.05 ± 0.40	K	NIST
Tboil	300.90 ± 0.30	K	NIST
Tboil	301.04 ± 0.10	K	NIST
Tboil	301.15 ± 0.50	K	NIST
Tboil	300.90 ± 0.80	K	NIST
Tboil	301.10 ± 0.50	K	NIST
Tboil	300.95 ± 0.30	K	NIST
Tboil	300.95 ± 0.30	K	NIST
Tboil	301.15 ± 1.00	K	NIST
Tboil	301.25 ± 0.50	K	NIST
Tboil	301.25 ± 0.50	K	NIST
Tboil	301.10 ± 0.50	K	NIST
Tboil	301.05 ± 0.50	K	NIST
Tboil	301.15 ± 0.50	K	NIST
Tboil	301.10 ± 0.20	K	NIST
Tboil	301.10 ± 0.50	K	NIST
Tboil	301.15 ± 0.50	K	NIST
Tboil	301.15 ± 0.50	K	NIST
Tboil	301.10 ± 0.05	K	NIST
Tboil	Outlier 303.70 ± 1.00	K	NIST
Tboil	301.10 ± 0.03	K	NIST
Tboil	301.20 ± 0.20	K	NIST
Tboil	301.05 ± 0.50	K	NIST
Tboil	301.05 ± 0.04	K	NIST
Tboil	301.15 ± 1.00	K	NIST
Tboil	301.00 ± 2.00	K	NIST
Tboil	301.15 ± 1.00	K	NIST
Tboil	Outlier 303.55 ± 0.50	K	NIST
Tboil	301.10 ± 0.05	K	NIST
Tboil	301.10 ± 0.20	K	NIST
Tboil	301.10 ± 0.20	K	NIST
Tboil	301.15 ± 1.00	K	NIST
Tboil	Outlier 303.65 ± 2.00	K	NIST
Tc	[460.30; 468.00]	K
Tc	460.40	K	IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 5 Compiled value
Tc	460.40	K	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Tc	460.43	K	Passut and Danner (1973), critical constants and acentric factors Compiled value
Tc	460.39	K	ChemSep v8.3 pure component data Compiled value
Tc	460.40 ± 0.50	K	NIST
Tc	460.36 ± 0.20	K	NIST
Tc	460.40	K	NIST
Tc	460.39 ± 0.50	K	NIST
Tc	460.39 ± 0.20	K	NIST
Tc	460.95 ± 0.10	K	NIST
Tc	461.00 ± 0.80	K	NIST
Tc	460.30 ± 0.60	K	NIST
Tc	Outlier 468.00 ± 8.00	K	NIST
Tfus	[112.55; 115.10]	K
Tfus	113.15	K	Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) Compiled value
Tfus	113.25	K	ChemSep v8.3 pure component data Compiled value
Tfus	113.23	K	Aq. Solubility Prediction
Tfus	113.25 ± 0.15	K	NIST
Tfus	113.14 ± 0.01	K	NIST
Tfus	113.20 ± 0.10	K	NIST
Tfus	112.55 ± 0.30	K	NIST
Tfus	112.55 ± 0.20	K	NIST
Tfus	114.15 ± 2.00	K	NIST
Tfus	113.00 ± 1.50	K	NIST
Tfus	112.70 ± 1.00	K	NIST
Tfus	113.15 ± 0.20	K	NIST
Tfus	Outlier 115.10 ± 0.20	K	NIST
Ttriple	[112.60; 113.39]	K
Ttriple	113.39	K	Staveley, Lobo and Calado (1981), triple points Compiled value
Ttriple	113.25	K	ChemSep v8.3 pure component data Compiled value
Ttriple	113.37 ± 0.02	K	NIST
Ttriple	113.39 ± 0.05	K	NIST
Ttriple	112.60 ± 0.30	K	NIST
Ttriple	113.37 ± 0.02	K	NIST
Ttriple	113.39 ± 0.05	K	NIST
Ttriple	112.60 ± 0.30	K	NIST
UQi	3.31		ChemSep v8.3 pure component data Compiled value
URi	3.82		ChemSep v8.3 pure component data Compiled value
Vc	[0.306; 0.308]	m3/kmol
Vc	0.306	m3/kmol	IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 5 Compiled value
Vc	0.306	m3/kmol	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Vc	0.308	m3/kmol	ChemSep v8.3 pure component data Compiled value
Vc	0.306	m3/kmol	NIST
VCOSTALD	0.31	m3/kmol	Hankinson and Thomson (1979), COSTALD parameters Compiled value
ωSRK	0.24		Hankinson and Thomson (1979), COSTALD parameters Compiled value
Zc	[0.2700000; 0.2720000]
Zc	0.2700000		IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 5 Compiled value
Zc	0.2720000		ChemSep v8.3 pure component data Compiled value
Zra	[0.27; 0.27]
Zra	0.27		Hankinson and Thomson (1979), COSTALD parameters Compiled value
Zra	0.27		ChemSep v8.3 pure component data Compiled value

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[125.31; 179.62]	J/mol×K	[317.20; 487.05]
Cp,gas	125.31 ± 0.37	J/mol×K	317.20	NIST
Cp,gas	139.12 ± 0.42	J/mol×K	358.15	NIST
Cp,gas	153.64 ± 0.46	J/mol×K	402.30	NIST
Cp,gas	168.36 ± 0.51	J/mol×K	449.20	NIST
Cp,gas	179.62 ± 0.54	J/mol×K	487.05	NIST
Cp,liquid	[124.20; 169.41]	J/mol×K	[120.00; 300.00]
Cp,liquid	124.20	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	125.90	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	127.60	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	129.20	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	130.80	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	132.50	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	134.20	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
Cp,liquid	136.00	J/mol×K	190.00	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	138.00	J/mol×K	200.00	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	140.10	J/mol×K	210.00	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	142.40	J/mol×K	220.00	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	144.80	J/mol×K	230.00	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	147.50	J/mol×K	240.00	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	150.20	J/mol×K	250.00	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	153.10	J/mol×K	260.00	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	156.20	J/mol×K	270.00	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	157.20	J/mol×K	273.15	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	157.30	J/mol×K	275.80	NIST
Cp,liquid	159.40	J/mol×K	280.00	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	162.60	J/mol×K	290.00	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	169.41	J/mol×K	290.00	NIST
Cp,liquid	165.40	J/mol×K	298.15	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	164.85	J/mol×K	298.15	NIST
Cp,liquid	164.50	J/mol×K	298.30	NIST
Cp,liquid	166.00	J/mol×K	300.00	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
η	[0.0001287; 0.0003893]	Pa×s	[253.15; 353.15]
η	0.0003893	Pa×s	253.15	Saturated Liquid Viscosity of Cyclopentane and Isopentane
η	0.0003661	Pa×s	258.15	Saturated Liquid Viscosity of Cyclopentane and Isopentane
η	0.0003439	Pa×s	263.15	Saturated Liquid Viscosity of Cyclopentane and Isopentane
η	0.0003201	Pa×s	268.15	Saturated Liquid Viscosity of Cyclopentane and Isopentane
η	0.0003023	Pa×s	273.15	Saturated Liquid Viscosity of Cyclopentane and Isopentane
η	0.0002859	Pa×s	278.15	Saturated Liquid Viscosity of Cyclopentane and Isopentane
η	0.0002703	Pa×s	283.15	Saturated Liquid Viscosity of Cyclopentane and Isopentane
η	0.0002547	Pa×s	288.15	Saturated Liquid Viscosity of Cyclopentane and Isopentane
η	0.0002399	Pa×s	293.15	Saturated Liquid Viscosity of Cyclopentane and Isopentane
η	0.0002289	Pa×s	298.15	Saturated Liquid Viscosity of Cyclopentane and Isopentane
η	0.0002144	Pa×s	303.15	Saturated Liquid Viscosity of Cyclopentane and Isopentane
η	0.0002023	Pa×s	308.15	Saturated Liquid Viscosity of Cyclopentane and Isopentane
η	0.0001910	Pa×s	313.15	Saturated Liquid Viscosity of Cyclopentane and Isopentane
η	0.0001813	Pa×s	318.15	Saturated Liquid Viscosity of Cyclopentane and Isopentane
η	0.0001724	Pa×s	323.15	Saturated Liquid Viscosity of Cyclopentane and Isopentane
η	0.0001611	Pa×s	328.15	Saturated Liquid Viscosity of Cyclopentane and Isopentane
η	0.0001543	Pa×s	333.15	Saturated Liquid Viscosity of Cyclopentane and Isopentane
η	0.0001480	Pa×s	338.15	Saturated Liquid Viscosity of Cyclopentane and Isopentane
η	0.0001411	Pa×s	343.15	Saturated Liquid Viscosity of Cyclopentane and Isopentane
η	0.0001332	Pa×s	348.15	Saturated Liquid Viscosity of Cyclopentane and Isopentane
η	0.0001287	Pa×s	353.15	Saturated Liquid Viscosity of Cyclopentane and Isopentane
ΔfusH	[5.11; 5.16]	kJ/mol	[112.60; 113.40]
ΔfusH	5.11	kJ/mol	112.60	NIST
ΔfusH	5.11	kJ/mol	112.60	NIST
ΔfusH	5.16	kJ/mol	113.37	NIST
ΔfusH	5.16	kJ/mol	113.37	NIST
ΔfusH	5.13	kJ/mol	113.39	NIST
ΔfusH	5.13	kJ/mol	113.39	NIST
ΔfusH	5.13	kJ/mol	113.40	NIST
ΔfusH	5.13	kJ/mol	113.40	NIST
ΔvapH	[12.90; 30.20]	kJ/mol	[245.00; 436.00]
ΔvapH	30.20	kJ/mol	245.00	NIST
ΔvapH	28.50	kJ/mol	269.50	NIST
ΔvapH	26.90	kJ/mol	289.00	NIST
ΔvapH	24.83	kJ/mol	293.95	NIST
ΔvapH	24.83	kJ/mol	293.95	NIST
ΔvapH	26.20	kJ/mol	295.00	NIST
ΔvapH	24.69	kJ/mol	301.00	NIST
ΔvapH	24.40	kJ/mol	310.00	NIST
ΔvapH	21.50	kJ/mol	350.00	NIST
ΔvapH	25.20	kJ/mol	355.50	NIST
ΔvapH	25.20	kJ/mol	380.00	NIST
ΔvapH	18.00	kJ/mol	390.00	NIST
ΔvapH	24.80	kJ/mol	400.50	NIST
ΔvapH	12.90	kJ/mol	430.00	NIST
ΔvapH	25.30	kJ/mol	436.00	NIST
n0	1.35350		293.15	Isobaric Vapor Liquid Equilibrium for Nine Binary Systems of Cracking C5 Fraction at 250 kPa
ΔfusS	[45.23; 45.48]	J/mol×K	[112.60; 113.40]
ΔfusS	45.41	J/mol×K	112.60	NIST
ΔfusS	45.41	J/mol×K	112.60	NIST
ΔfusS	45.48	J/mol×K	113.37	NIST
ΔfusS	45.48	J/mol×K	113.37	NIST
ΔfusS	45.24	J/mol×K	113.39	NIST
ΔfusS	45.24	J/mol×K	113.39	NIST
ΔfusS	45.23	J/mol×K	113.40	NIST
ΔvapS	[84.48; 84.48]	J/mol×K	[293.95; 293.95]
ΔvapS	84.48	J/mol×K	293.95	NIST
ΔvapS	84.48	J/mol×K	293.95	NIST

Datasets

1. Mass density, kg/m3 (1)
2. Thermal conductivity, W/m/K (1)

Mass density, kg/m3

Fixed		Measured
Temperature, K - Liquid	Pressure, kPa - Liquid	Mass density, kg/m3 - Liquid
280.00	200000.00	744.07
280.00	180000.00	737.33
280.00	160000.00	729.89
280.00	140000.00	722.2
280.00	120000.00	713.77
280.00	100000.00	704.35
280.00	90000.00	699.3
280.00	80000.00	694.03
280.00	70000.00	688.43
280.00	60000.00	682.44
280.00	50000.00	675.94
280.00	40000.00	669.03
280.00	30000.00	661.46
280.00	20000.00	653.11
280.00	10000.00	643.42
280.00	5000.00	638.02
280.00	3000.00	635.86
280.00	2000.00	634.7
280.00	1000.00	633.54
300.00	200000.00	734.71
300.00	180000.00	727.5
300.00	160000.00	719.81
300.00	140000.00	711.75
300.00	120000.00	702.76
300.00	100000.00	692.98
300.00	90000.00	687.64
300.00	80000.00	682.03
300.00	70000.00	675.91
300.00	60000.00	669.45
300.00	50000.00	662.36
300.00	40000.00	654.71
300.00	30000.00	646.19
300.00	20000.00	636.61
300.00	10000.00	625.53
300.00	5000.00	619.26
300.00	3000.00	616.54
300.00	2000.00	615.18
300.00	1000.00	613.77
320.00	200000.00	725.65
320.00	180000.00	718.37
320.00	160000.00	710.26
320.00	140000.00	701.5
320.00	120000.00	691.83
320.00	100000.00	681.48
320.00	90000.00	675.83
320.00	80000.00	669.62
320.00	70000.00	662.98
320.00	60000.00	656.03
320.00	50000.00	648.39
320.00	40000.00	639.89
320.00	30000.00	630.46
320.00	20000.00	619.58
320.00	10000.00	606.77
320.00	5000.00	599.33
320.00	3000.00	596.07
320.00	2000.00	594.35
320.00	1000.00	592.72
340.00	200000.00	716.61
340.00	180000.00	708.89
340.00	160000.00	700.49
340.00	140000.00	691.52
340.00	120000.00	681.53
340.00	100000.00	670.52
340.00	90000.00	664.53
340.00	80000.00	658.05
340.00	70000.00	651.03
340.00	60000.00	643.45
340.00	50000.00	635.12
340.00	40000.00	625.82
340.00	30000.00	615.28
340.00	20000.00	602.92
340.00	10000.00	587.99
340.00	5000.00	578.97
340.00	3000.00	574.98
340.00	2000.00	572.85
340.00	1000.00	570.66
360.00	200000.00	708.18
360.00	180000.00	699.47
360.00	160000.00	691.16
360.00	140000.00	681.34
360.00	120000.00	671.11
360.00	100000.00	659.45
360.00	90000.00	652.93
360.00	80000.00	645.89
360.00	70000.00	638.43
360.00	60000.00	630.27
360.00	50000.00	621.15
360.00	40000.00	610.91
360.00	30000.00	599.16
360.00	20000.00	585.18
360.00	10000.00	567.71
360.00	5000.00	556.57
360.00	3000.00	551.5
360.00	2000.00	548.79
360.00	1000.00	545.89
380.00	200000.00	699.6
380.00	180000.00	691.12
380.00	160000.00	682.07
380.00	140000.00	672.14
380.00	120000.00	661.13
380.00	100000.00	648.74
380.00	90000.00	641.88
380.00	80000.00	634.41
380.00	70000.00	626.4
380.00	60000.00	617.61
380.00	50000.00	607.73
380.00	40000.00	596.53
380.00	30000.00	583.41
380.00	20000.00	567.43
380.00	10000.00	546.59
380.00	5000.00	532.71
380.00	3000.00	526.02
380.00	2000.00	522.38
380.00	1000.00	518.39
400.00	200000.00	691.58
400.00	180000.00	682.87
400.00	160000.00	673.54
400.00	140000.00	662.94
400.00	120000.00	651.4
400.00	100000.00	638.47
400.00	90000.00	631.33
400.00	80000.00	623.43
400.00	70000.00	614.87
400.00	60000.00	605.35
400.00	50000.00	594.58
400.00	40000.00	582.37
400.00	30000.00	567.78
400.00	20000.00	549.47
400.00	10000.00	524.35
400.00	5000.00	506.33
400.00	3000.00	497.03
400.00	2000.00	491.59
420.00	200000.00	683.74
420.00	180000.00	674.63
420.00	160000.00	664.82
420.00	140000.00	653.97
420.00	120000.00	641.97
420.00	100000.00	628.24
420.00	90000.00	620.5
420.00	80000.00	612.1
420.00	70000.00	602.84
420.00	60000.00	592.84
420.00	50000.00	581.15
420.00	40000.00	567.85
420.00	30000.00	551.51
420.00	20000.00	530.77
420.00	10000.00	500.48
420.00	5000.00	476.16
420.00	3000.00	461.88
420.00	2000.00	452.61
440.00	200000.00	676.01
440.00	180000.00	666.6
440.00	160000.00	656.44
440.00	140000.00	645.06
440.00	120000.00	632.51
440.00	100000.00	618.08
440.00	90000.00	610.1
440.00	80000.00	601.22
440.00	70000.00	591.44
440.00	60000.00	580.59
440.00	50000.00	568.08
440.00	40000.00	553.42
440.00	30000.00	535.46
440.00	20000.00	511.64
440.00	10000.00	474.4
440.00	5000.00	439.7
440.00	3000.00	412.99
298.14	177400.00	727.57
298.14	101400.00	694.83
298.14	40600.00	656.53
298.14	10200.00	627.35
323.13	196130.00	722.79
323.13	147100.00	703.2
323.13	98070.00	678.79
323.13	49030.00	645.8
368.12	196130.00	703.04
368.12	147100.00	681.34
368.12	98070.00	653.72
320.00	2000.00	595.25
320.00	1000.00	593.5
320.00	502.00	592.61
320.00	315.00	592.25
320.00	210.00	592.07
320.00	199.00	592.04
340.00	1000.00	571.14
340.00	513.00	570.01
340.00	420.00	569.78
340.00	338.00	569.61
360.00	1000.00	545.87
360.00	702.00	545.09
360.00	609.00	544.84
360.00	608.00	544.68
360.00	550.00	544.65
380.00	1001.00	519.03
380.00	962.00	518.87
380.00	857.00	518.44
380.00	846.00	518.39
400.00	2000.00	492.12
400.00	1611.00	489.83
400.00	1506.00	489.2
400.00	1309.00	487.97
400.00	1250.00	487.6
410.00	2000.00	474.02
410.00	1623.00	471.11
410.00	1519.00	470.27
420.00	2000.00	452.93
420.00	1904.00	451.92
420.00	1800.00	450.78
420.00	1789.00	450.66
Reference

Thermal conductivity, W/m/K

Fixed		Measured
Temperature, K - Gas	Pressure, kPa - Gas	Thermal conductivity, W/m/K - Gas
342.97	100.00	0.0195
352.61	100.00	0.0206
375.00	100.00	0.0235
390.75	100.00	0.0257
342.97	200.00	0.0196
352.61	200.00	0.0207
375.00	200.00	0.0236
390.75	200.00	0.0258
342.97	500.00	0.0198
352.61	500.00	0.0209
375.00	500.00	0.0238
390.75	500.00	0.0260
Reference

Correlations

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[85.07; 337.54]	J/mol×K	[200.00; 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			5.98430e+01
Coefficient B			-4.93270e+02
Coefficient C			5.60824e+00
Coefficient D			4.60990e-04
Coefficient E			-1.53050e-07
Temperature range, min.			200.00
Temperature range, max.			1500.00
Cp,gas	85.07	J/mol×K	200.00	Calculated Property
Cp,gas	134.79	J/mol×K	344.44	Calculated Property
Cp,gas	179.91	J/mol×K	488.89	Calculated Property
Cp,gas	217.43	J/mol×K	633.33	Calculated Property
Cp,gas	248.51	J/mol×K	777.78	Calculated Property
Cp,gas	274.35	J/mol×K	922.22	Calculated Property
Cp,gas	295.74	J/mol×K	1066.67	Calculated Property
Cp,gas	313.19	J/mol×K	1211.11	Calculated Property
Cp,gas	327.05	J/mol×K	1355.56	Calculated Property
Cp,gas	337.54	J/mol×K	1500.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
Cp,liquid	[123.41; 170.38]	J/mol×K	[113.25; 310.00]	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			1.12460e+02
Coefficient B			-5.42590e+01
Coefficient C			1.96694e+00
Coefficient D			8.39110e-03
Coefficient E			-3.47730e-06
Temperature range, min.			113.25
Temperature range, max.			310.00
Cp,liquid	123.41	J/mol×K	113.25	Calculated Property
Cp,liquid	126.41	J/mol×K	135.11	Calculated Property
Cp,liquid	129.80	J/mol×K	156.97	Calculated Property
Cp,liquid	133.64	J/mol×K	178.83	Calculated Property
Cp,liquid	138.01	J/mol×K	200.69	Calculated Property
Cp,liquid	142.98	J/mol×K	222.56	Calculated Property
Cp,liquid	148.63	J/mol×K	244.42	Calculated Property
Cp,liquid	155.02	J/mol×K	266.28	Calculated Property
Cp,liquid	162.25	J/mol×K	288.14	Calculated Property
Cp,liquid	170.38	J/mol×K	310.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
η	[0.0035439; 0.0001336]	Pa×s	[150.00; 360.00]	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			-1.25960e+01
Coefficient B			8.89140e+02
Coefficient C			2.04720e-01
Coefficient D			4.05920e-09
Coefficient E			2.00000e+00
Temperature range, min.			150.00
Temperature range, max.			360.00
η	0.0035439	Pa×s	150.00	Calculated Property
η	0.0016436	Pa×s	173.33	Calculated Property
η	0.0009178	Pa×s	196.67	Calculated Property
η	0.0005814	Pa×s	220.00	Calculated Property
η	0.0004029	Pa×s	243.33	Calculated Property
η	0.0002982	Pa×s	266.67	Calculated Property
η	0.0002320	Pa×s	290.00	Calculated Property
η	0.0001876	Pa×s	313.33	Calculated Property
η	0.0001564	Pa×s	336.67	Calculated Property
η	0.0001336	Pa×s	360.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
ΔvapH	[34.35; 0.00]	kJ/mol	[113.25; 460.39]	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			4.14248e+01
Coefficient B			7.99342e-01
Coefficient C			-5.81969e-01
Coefficient D			8.34724e-02
Coefficient E			1.17826e-01
Critical temperature, Tc (K)			4.60390e+02
Comment			Range stopped at Tc; ChemSep gives it to 460.4 K.
Temperature range, min.			113.25
Temperature range, max.			460.39
ΔvapH	34.35	kJ/mol	113.25	Calculated Property
ΔvapH	32.31	kJ/mol	151.82	Calculated Property
ΔvapH	30.38	kJ/mol	190.39	Calculated Property
ΔvapH	28.47	kJ/mol	228.96	Calculated Property
ΔvapH	26.52	kJ/mol	267.53	Calculated Property
ΔvapH	24.41	kJ/mol	306.11	Calculated Property
ΔvapH	21.95	kJ/mol	344.68	Calculated Property
ΔvapH	18.85	kJ/mol	383.25	Calculated Property
ΔvapH	14.38	kJ/mol	421.82	Calculated Property
ΔvapH	0.00	kJ/mol	460.39	Calculated Property

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.23e-07; 3366.49]	kPa	[113.25; 460.39]	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			6.41351e+01
Coefficient B			-4.96723e+03
Coefficient C			-7.67438e+00
Coefficient D			8.65993e-06
Coefficient E			2.00000e+00
Comment			Range stopped at Tc; ChemSep gives it to 460.4 K.
Temperature range, min.			113.25
Temperature range, max.			460.39
Pvap	1.23e-07	kPa	113.25	Calculated Property
Pvap	9.79e-04	kPa	151.82	Calculated Property
Pvap	0.15	kPa	190.39	Calculated Property
Pvap	3.31	kPa	228.96	Calculated Property
Pvap	26.96	kPa	267.53	Calculated Property
Pvap	120.51	kPa	306.11	Calculated Property
Pvap	370.29	kPa	344.68	Calculated Property
Pvap	892.25	kPa	383.25	Calculated Property
Pvap	1829.64	kPa	421.82	Calculated Property
Pvap	3366.49	kPa	460.39	Calculated Property
Pvap	[1.16e-07; 3360.92]	kPa	[113.25; 460.43]	KDB Vapor Pressure Data
Equation			ln(Y) = A + B/T + C·ln(T) + D·T² + E/T² Y is Pvap in kPa, T in K
Coefficient A			6.45140e+01
Coefficient B			-4.98703e+03
Coefficient C			-7.72933e+00
Coefficient D			8.65422e-06
Coefficient E			0.00000e+00
Temperature range, min.			113.25
Temperature range, max.			460.43
Pvap	1.16e-07	kPa	113.25	Calculated Property
Pvap	9.53e-04	kPa	151.83	Calculated Property
Pvap	0.14	kPa	190.40	Calculated Property
Pvap	3.29	kPa	228.98	Calculated Property
Pvap	26.91	kPa	267.55	Calculated Property
Pvap	120.50	kPa	306.13	Calculated Property
Pvap	370.45	kPa	344.70	Calculated Property
Pvap	892.42	kPa	383.28	Calculated Property
Pvap	1828.60	kPa	421.85	Calculated Property
Pvap	3360.92	kPa	460.43	Calculated Property
Pvap	[0.13; 100.99]	kPa	[190.30; 300.90]	NIST
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			1.36068e+01
Coefficient B			-2.34522e+03
Coefficient C			-4.00810e+01
Reference			Stull, 1947
Comment			Coefficents calculated by NIST from author's data.
Temperature range, min.			190.30
Temperature range, max.			300.90
Pvap	0.13	kPa	190.30	Calculated Property
Pvap	0.44	kPa	202.59	Calculated Property
Pvap	1.21	kPa	214.88	Calculated Property
Pvap	2.92	kPa	227.17	Calculated Property
Pvap	6.32	kPa	239.46	Calculated Property
Pvap	12.51	kPa	251.74	Calculated Property
Pvap	22.98	kPa	264.03	Calculated Property
Pvap	39.63	kPa	276.32	Calculated Property
Pvap	64.74	kPa	288.61	Calculated Property
Pvap	100.99	kPa	300.90	Calculated Property
Pvap	[101.40; 3027.70]	kPa	[300.90; 453.50]	NIST
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			1.37506e+01
Coefficient B			-2.35293e+03
Coefficient C			-4.32310e+01
Reference			Stull, 1947
Comment			Coefficents calculated by NIST from author's data.
Temperature range, min.			300.90
Temperature range, max.			453.50
Pvap	101.40	kPa	300.90	Calculated Property
Pvap	178.19	kPa	317.86	Calculated Property
Pvap	293.26	kPa	334.81	Calculated Property
Pvap	456.93	kPa	351.77	Calculated Property
Pvap	679.80	kPa	368.72	Calculated Property
Pvap	972.35	kPa	385.68	Calculated Property
Pvap	1344.62	kPa	402.63	Calculated Property
Pvap	1805.89	kPa	419.59	Calculated Property
Pvap	2364.50	kPa	436.54	Calculated Property
Pvap	3027.70	kPa	453.50	Calculated Property
Pvap	[66.76; 103.93]	kPa	[289.44; 301.74]	NIST
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			1.36188e+01
Coefficient B			-2.34866e+03
Coefficient C			-4.00530e+01
Reference			Williamham, Taylor, et al., 1945
Temperature range, min.			289.44
Temperature range, max.			301.74
Pvap	66.76	kPa	289.44	Calculated Property
Pvap	70.27	kPa	290.81	Calculated Property
Pvap	73.93	kPa	292.17	Calculated Property
Pvap	77.74	kPa	293.54	Calculated Property
Pvap	81.70	kPa	294.91	Calculated Property
Pvap	85.82	kPa	296.27	Calculated Property
Pvap	90.09	kPa	297.64	Calculated Property
Pvap	94.54	kPa	299.01	Calculated Property
Pvap	99.15	kPa	300.37	Calculated Property
Pvap	103.93	kPa	301.74	Calculated Property

Property	Value	Unit	Temperature (K)	Source
ρl	[776.76; 273.58]	kg/m3	[113.15; 460.39]	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			5.28086e+01
Coefficient B			2.48350e-01
Coefficient C			4.60990e+02
Coefficient D			2.57330e-01
Comment			Range stopped at Tc; ChemSep gives it to 460.98 K.
Temperature range, min.			113.15
Temperature range, max.			460.39
ρl	776.76	kg/m3	113.15	Calculated Property
ρl	747.34	kg/m3	151.73	Calculated Property
ρl	716.34	kg/m3	190.31	Calculated Property
ρl	683.36	kg/m3	228.90	Calculated Property
ρl	647.86	kg/m3	267.48	Calculated Property
ρl	608.93	kg/m3	306.06	Calculated Property
ρl	565.07	kg/m3	344.64	Calculated Property
ρl	513.22	kg/m3	383.23	Calculated Property
ρl	445.06	kg/m3	421.81	Calculated Property
ρl	273.58	kg/m3	460.39	Calculated Property

Property	Value	Unit	Temperature (K)	Source
γ	[0.03; 0.01]	N/m	[113.23; 303.15]	Jasper (1972), surface tension of pure liquid compounds Compiled value
Equation			Y = A + B·T + C·T² + D·T³ + E·T⁴ Y is γ in N/m, T in K
Coefficient A			4.73284e-02
Coefficient B			-1.10300e-04
Coefficient C			0.00000e+00
Coefficient D			0.00000e+00
Coefficient E			0.00000e+00
Temperature range, min.			113.23
Temperature range, max.			303.15
γ	0.03	N/m	113.23	Calculated Property
γ	0.03	N/m	134.33	Calculated Property
γ	0.03	N/m	155.43	Calculated Property
γ	0.03	N/m	176.53	Calculated Property
γ	0.03	N/m	197.64	Calculated Property
γ	0.02	N/m	218.74	Calculated Property
γ	0.02	N/m	239.84	Calculated Property
γ	0.02	N/m	260.94	Calculated Property
γ	0.02	N/m	282.05	Calculated Property
γ	0.01	N/m	303.15	Calculated Property
γ	[0.04; 9.72e-04]	N/m	[113.25; 442.13]	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			-1.43110e-02
Coefficient B			8.31600e+00
Coefficient C			-2.89740e+00
Coefficient D			-9.01510e-04
Coefficient E			-4.62380e-06
Temperature range, min.			113.25
Temperature range, max.			442.13
γ	0.04	N/m	113.25	Calculated Property
γ	0.03	N/m	149.79	Calculated Property
γ	0.03	N/m	186.33	Calculated Property
γ	0.02	N/m	222.88	Calculated Property
γ	0.02	N/m	259.42	Calculated Property
γ	0.01	N/m	295.96	Calculated Property
γ	0.01	N/m	332.50	Calculated Property
γ	0.01	N/m	369.05	Calculated Property
γ	0.00	N/m	405.59	Calculated Property
γ	9.72e-04	N/m	442.13	Calculated Property

Property	Value	Unit	Temperature (K)	Source
λgas	[0.00; 0.11]	W/m×K	[113.25; 1000.00]	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			9.00190e-04
Coefficient B			7.73800e-01
Coefficient C			4.56820e+02
Coefficient D			2.31390e+05
Temperature range, min.			113.25
Temperature range, max.			1000.00
λgas	0.00	W/m×K	113.25	Calculated Property
λgas	0.01	W/m×K	211.78	Calculated Property
λgas	0.02	W/m×K	310.31	Calculated Property
λgas	0.03	W/m×K	408.83	Calculated Property
λgas	0.04	W/m×K	507.36	Calculated Property
λgas	0.05	W/m×K	605.89	Calculated Property
λgas	0.07	W/m×K	704.42	Calculated Property
λgas	0.08	W/m×K	802.94	Calculated Property
λgas	0.10	W/m×K	901.47	Calculated Property
λgas	0.11	W/m×K	1000.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
λliquid	[0.17; 0.09]	W/m×K	[113.25; 368.13]	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			6.10610e-02
Coefficient B			8.98570e+01
Coefficient C			-3.52200e+00
Coefficient D			7.51540e-03
Coefficient E			-2.30320e-05
Temperature range, min.			113.25
Temperature range, max.			368.13
λliquid	0.17	W/m×K	113.25	Calculated Property
λliquid	0.16	W/m×K	141.57	Calculated Property
λliquid	0.15	W/m×K	169.89	Calculated Property
λliquid	0.14	W/m×K	198.21	Calculated Property
λliquid	0.13	W/m×K	226.53	Calculated Property
λliquid	0.12	W/m×K	254.85	Calculated Property
λliquid	0.11	W/m×K	283.17	Calculated Property
λliquid	0.10	W/m×K	311.49	Calculated Property
λliquid	0.10	W/m×K	339.81	Calculated Property
λliquid	0.09	W/m×K	368.13	Calculated Property

Similar Compounds

Find more compounds similar to Butane, 2-methyl-.

Mixtures

• Pentane + Butane, 2-methyl-
• Thiophene + Butane, 2-methyl-
• Thiophene, 3-methyl- + Butane, 2-methyl-
• Butane, 2-methyl- + Water
• Carbon dioxide + Butane, 2-methyl-
• 2-Propanol, 2-methyl- + Butane, 2-methyl- + Water
• 2-Butene, 2-methyl- + Butane, 2-methyl-
• Cyclopentene + Butane, 2-methyl-

Sources

• KDB Vapor Pressure Data
• 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 5 ChEDL chemicals 1.5.2, from Daubert, T. E. Vapor-Liquid Critical Properties of Elements and Compounds. 5. Branched Alkanes and Cycloalkanes. J. Chem. Eng. Data 1996, 41, 365-372.
• Jasper (1972), surface tension of pure liquid compounds ChEDL chemicals 1.5.2, from Jasper, J. J. The Surface Tension of Pure Liquid Compounds. J. Phys. Chem. Ref. Data 1972, 1, 841-1010 (as transcribed in Lange's Handbook).
• 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
• The Precise Measurement of Vapor Liquid Equilibrium Properties of the CO2/Isopentane Binary Mixture, and Fitted Parameters for a Helmholtz Energy Mixture Model
• Thermal conductivity of polyurethane foam cell gases: Improved transient hot wire cell data of isopentane + n-pentane mixtures Extended Wassiljewa-model
• Isobaric vapor-liquid equilibrium for four binary systems of thiophene
• Isobaric vapor-liquid equilibrium for four binary systems of 3-methylthiophene
• Development of a Henry s constant correlation and solubility measurements of n-pentane, i-pentane, cyclopentane, n-hexane, and toluene in water
• P.rho.T and saturation properties of isopentane at T = (280-440) K and up to 200 MPa
• Isobaric Vapor Liquid Equilibrium for Nine Binary Systems of Cracking C5 Fraction at 250 kPa
• Saturated Liquid Viscosity of Cyclopentane and Isopentane
• Liquid-Liquid Equilibria in Ternary Systems 2-Methylbutane + 2-Methyl-2-propanol + Water and Pentane + 2-Methyl-2-propanol + Water at 293.15 K
• Joback Method
• KDB
• Aqueous Solubility Prediction Method
• Estimated Solubility Method
• McGowan Method
• NIST Webbook
• 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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