Chemical Properties of Pentane, 3-ethyl- (CAS 617-78-7)

InChI

InChI=1S/C7H16/c1-4-7(5-2)6-3/h7H,4-6H2,1-3H3

InChI Key

AORMDLNPRGXHHL-UHFFFAOYSA-N

Formula

C7H16

SMILES

CCC(CC)CC

Molecular Weight¹

100.20

CAS

617-78-7

Other Names

• 3-ethylpentane

• ω : Acentric Factor.
• AP : Aniline Point (K).
• 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).
• C_sat : Molar heat capacity at saturation pressure (J/mol×K).
• μ : Dipole Moment (debye).
• η : Dynamic viscosity (Pa×s).
• Δ_fG° : Standard Gibbs free energy of formation (kJ/mol).
• Δ_c,grossH : Heat of Combustion, Gross form (kJ/mol).
• Δ_c,netH : Heat of Combustion, Net Form (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.
• Δ_fusS : Entropy of fusion at a given temperature (J/mol×K).
• S°_gas : Molar entropy at standard conditions (J/mol×K).
• S°_liquid : Liquid phase molar entropy at standard conditions (J/mol×K).
• γ : Surface Tension (N/m).
• 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.

Physical Properties

Property	Value	Unit	Source
ω	[0.3100; 0.3110]
ω	0.3100		PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
ω	0.3101		Passut and Danner (1973), critical constants and acentric factors Compiled value
ω	0.3110		ChemSep v8.3 pure component data Compiled value
ω	0.3100		KDB
AP	338.850	K	KDB
ΔcH°liquid	[-4816.30; -4814.00]	kJ/mol
ΔcH°liquid	-4816.30 ± 1.10	kJ/mol	NIST
ΔcH°liquid	-4814.00 ± 1.30	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
ΔfG°	[10.92; 11.00]	kJ/mol
ΔfG°	10.92	kJ/mol	ChemSep v8.3 pure component data Compiled value
ΔfG°	11.00	kJ/mol	KDB
Δc,grossH	4816.33	kJ/mol	KDB
Δc,netH	4464.203	kJ/mol	KDB
ΔfH°gas	[-191.40; -189.66]	kJ/mol
ΔfH°gas	-189.66	kJ/mol	ChemSep v8.3 pure component data Compiled value
ΔfH°gas	-189.80	kJ/mol	KDB
ΔfH°gas	-189.70 ± 1.20	kJ/mol	NIST
ΔfH°gas	-191.40	kJ/mol	NIST
ΔfH°liquid	[-226.70; -225.00]	kJ/mol
ΔfH°liquid	-225.00 ± 1.20	kJ/mol	NIST
ΔfH°liquid	-226.70 ± 1.30	kJ/mol	NIST
ΔfusH°	10.36	kJ/mol	Joback Calculated Property
ΔvapH°	[35.10; 35.32]	kJ/mol
ΔvapH°	35.32	kJ/mol	NIST
ΔvapH°	35.10 ± 0.10	kJ/mol	NIST
ΔvapH°	35.20	kJ/mol	NIST
ΔvapH°	35.20 ± 0.10	kJ/mol	NIST
ΔvapH°	35.22	kJ/mol	NIST
IE	9.83	eV	Relay (1.0) Calculated Property
log10WS	-4.08		Relay (1.0) Calculated Property
logPoct/wat	2.833		Crippen Calculated Property
McVol	109.490	ml/mol	McGowan Calculated Property
Pc	[2889.79; 2897.90]	kPa
Pc	2890.00	kPa	IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 5 Compiled value
Pc	2889.79	kPa	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Pc	2890.97	kPa	Passut and Danner (1973), critical constants and acentric factors Compiled value
Pc	2890.00	kPa	ChemSep v8.3 pure component data Compiled value
Pc	2890.00	kPa	KDB
Pc	2890.00 ± 40.00	kPa	NIST
Pc	2890.80 ± 40.53	kPa	NIST
Pc	Outlier 2897.90 ± 50.66	kPa	NIST
Ptriple	1.71e-06	kPa	ChemSep v8.3 pure component data Compiled value
ρc	[241.49; 241.49]	kg/m3
ρc	241.49 ± 4.01	kg/m3	NIST
ρc	241.49 ± 5.01	kg/m3	NIST
Inp	[679.00; 692.00]
Inp	687.00		NIST
Inp	683.00		NIST
Inp	687.30		NIST
Inp	685.00		NIST
Inp	687.00		NIST
Inp	687.40		NIST
Inp	687.40		NIST
Inp	687.40		NIST
Inp	687.90		NIST
Inp	686.40		NIST
Inp	687.50		NIST
Inp	686.00		NIST
Inp	687.10		NIST
Inp	685.40		NIST
Inp	686.40		NIST
Inp	686.00		NIST
Inp	687.00		NIST
Inp	687.00		NIST
Inp	685.50		NIST
Inp	686.10		NIST
Inp	686.60		NIST
Inp	687.20		NIST
Inp	687.00		NIST
Inp	687.40		NIST
Inp	686.00		NIST
Inp	686.00		NIST
Inp	686.00		NIST
Inp	Outlier 679.00		NIST
Inp	686.20		NIST
Inp	686.40		NIST
Inp	686.00		NIST
Inp	686.00		NIST
Inp	688.00		NIST
Inp	688.00		NIST
Inp	688.00		NIST
Inp	687.00		NIST
Inp	683.50		NIST
Inp	683.50		NIST
Inp	686.00		NIST
Inp	687.00		NIST
Inp	688.00		NIST
Inp	684.00		NIST
Inp	685.00		NIST
Inp	685.00		NIST
Inp	686.00		NIST
Inp	687.00		NIST
Inp	686.30		NIST
Inp	Outlier 691.00		NIST
Inp	689.00		NIST
Inp	688.00		NIST
Inp	685.00		NIST
Inp	688.00		NIST
Inp	686.00		NIST
Inp	685.00		NIST
Inp	686.00		NIST
Inp	687.00		NIST
Inp	688.00		NIST
Inp	684.50		NIST
Inp	686.00		NIST
Inp	685.00		NIST
Inp	686.00		NIST
Inp	687.00		NIST
Inp	689.00		NIST
Inp	684.00		NIST
Inp	685.00		NIST
Inp	685.00		NIST
Inp	687.00		NIST
Inp	686.00		NIST
Inp	687.00		NIST
Inp	688.00		NIST
Inp	684.00		NIST
Inp	682.00		NIST
Inp	685.00		NIST
Inp	685.90		NIST
Inp	684.70		NIST
Inp	Outlier 679.79		NIST
Inp	Outlier 680.52		NIST
Inp	683.00		NIST
Inp	682.17		NIST
Inp	682.20		NIST
Inp	683.00		NIST
Inp	683.00		NIST
Inp	683.88		NIST
Inp	684.72		NIST
Inp	685.24		NIST
Inp	684.11		NIST
Inp	684.98		NIST
Inp	685.47		NIST
Inp	682.00		NIST
Inp	683.00		NIST
Inp	686.00		NIST
Inp	686.00		NIST
Inp	687.00		NIST
Inp	689.00		NIST
Inp	687.00		NIST
Inp	683.00		NIST
Inp	687.00		NIST
Inp	Outlier 681.00		NIST
Inp	686.00		NIST
Inp	683.00		NIST
Inp	683.00		NIST
Inp	688.00		NIST
Inp	686.00		NIST
Inp	687.00		NIST
Inp	687.00		NIST
Inp	683.00		NIST
Inp	687.00		NIST
Inp	685.00		NIST
Inp	687.00		NIST
Inp	682.00		NIST
Inp	683.00		NIST
Inp	687.00		NIST
Inp	682.00		NIST
Inp	Outlier 692.00		NIST
Inp	Outlier 691.00		NIST
Inp	Outlier 692.00		NIST
Inp	Outlier 691.00		NIST
Inp	686.00		NIST
Inp	683.00		NIST
Inp	684.70		NIST
Inp	682.20		NIST
Inp	685.24		NIST
Inp	688.00		NIST
Inp	687.00		NIST
Inp	Outlier 691.00		NIST
S°gas	411.50	J/mol×K	NIST
S°liquid	[312.10; 314.55]	J/mol×K
S°liquid	314.55	J/mol×K	NIST
S°liquid	312.10	J/mol×K	NIST
Tboil	[366.40; 366.70]	K
Tboil	366.63	K	ChemSep v8.3 pure component data Compiled value
Tboil	366.60	K	KDB
Tboil	366.70	K	NIST
Tboil	366.60	K	NIST
Tboil	366.40 ± 1.50	K	NIST
Tboil	366.63 ± 0.30	K	NIST
Tboil	366.40 ± 0.50	K	NIST
Tboil	366.60 ± 0.20	K	NIST
Tboil	366.47 ± 0.30	K	NIST
Tboil	366.62 ± 0.07	K	NIST
Tboil	366.65 ± 0.50	K	NIST
Tboil	366.57 ± 0.20	K	NIST
Tboil	366.62 ± 0.20	K	NIST
Tboil	366.70 ± 0.15	K	NIST
Tboil	366.60 ± 0.20	K	NIST
Tboil	366.70 ± 0.20	K	NIST
Tboil	366.62 ± 0.07	K	NIST
Tboil	366.70 ± 0.20	K	NIST
Tboil	366.60 ± 0.20	K	NIST
Tboil	366.52 ± 0.20	K	NIST
Tboil	366.61 ± 0.07	K	NIST
Tboil	366.62 ± 0.03	K	NIST
Tboil	366.52 ± 0.30	K	NIST
Tboil	366.45 ± 0.50	K	NIST
Tboil	366.45 ± 0.50	K	NIST
Tboil	366.45 ± 0.50	K	NIST
Tc	[540.50; 540.75]	K
Tc	540.60	K	IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 5 Compiled value
Tc	540.60	K	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Tc	540.64	K	Passut and Danner (1973), critical constants and acentric factors Compiled value
Tc	540.50	K	ChemSep v8.3 pure component data Compiled value
Tc	540.60	K	KDB
Tc	540.60 ± 0.40	K	NIST
Tc	540.57 ± 0.40	K	NIST
Tc	Outlier 540.75 ± 0.50	K	NIST
Tfus	[154.25; 154.55]	K
Tfus	154.35	K	Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) Compiled value
Tfus	154.55	K	ChemSep v8.3 pure component data Compiled value
Tfus	154.50	K	KDB
Tfus	154.39 ± 0.30	K	NIST
Tfus	154.53 ± 0.03	K	NIST
Tfus	154.54 ± 0.02	K	NIST
Tfus	154.55 ± 0.01	K	NIST
Tfus	154.25 ± 0.20	K	NIST
Tfus	154.50 ± 0.06	K	NIST
Tfus	154.35 ± 0.50	K	NIST
Tfus	154.35 ± 0.30	K	NIST
Ttriple	[154.30; 154.59]	K
Ttriple	154.55	K	ChemSep v8.3 pure component data Compiled value
Ttriple	154.58 ± 0.08	K	NIST
Ttriple	154.58 ± 0.06	K	NIST
Ttriple	154.58 ± 0.03	K	NIST
Ttriple	154.58 ± 0.02	K	NIST
Ttriple	154.59 ± 0.03	K	NIST
Ttriple	154.59 ± 0.02	K	NIST
Ttriple	Outlier 154.30 ± 0.20	K	NIST
UQi	4.39		ChemSep v8.3 pure component data Compiled value
URi	5.17		ChemSep v8.3 pure component data Compiled value
Vc	[0.416; 0.416]	m3/kmol
Vc	0.416	m3/kmol	IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 5 Compiled value
Vc	0.416	m3/kmol	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Vc	0.416	m3/kmol	ChemSep v8.3 pure component data Compiled value
Vc	0.416	m3/kmol	KDB
Vc	0.416	m3/kmol	NIST
VCOSTALD	0.42	m3/kmol	Hankinson and Thomson (1979), COSTALD parameters Compiled value
ωSRK	0.31		Hankinson and Thomson (1979), COSTALD parameters Compiled value
Zc	[0.2670000; 0.2674720]
Zc	0.2670000		IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 5 Compiled value
Zc	0.2670000		ChemSep v8.3 pure component data Compiled value
Zc	0.2674720		KDB
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
Zra	0.27		KDB

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,liquid	[217.60; 219.58]	J/mol×K	[294.80; 298.15]
Cp,liquid	217.60	J/mol×K	294.80	NIST
Cp,liquid	219.58	J/mol×K	298.15	NIST
Csat	[174.00; 220.40]	J/mol×K	[160.00; 300.00]
Csat	174.00	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
Csat	176.50	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
Csat	179.10	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
Csat	181.80	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
Csat	184.60	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
Csat	187.60	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
Csat	190.70	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
Csat	194.00	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
Csat	197.40	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
Csat	200.90	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
Csat	204.50	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
Csat	208.30	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
Csat	209.50	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
Csat	212.20	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
Csat	216.20	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
Csat	219.60	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
Csat	220.40	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
ΔfusH	[9.46; 9.55]	kJ/mol	[154.30; 154.60]
ΔfusH	9.46	kJ/mol	154.30	NIST
ΔfusH	9.55	kJ/mol	154.58	NIST
ΔfusH	9.55	kJ/mol	154.60	NIST
ΔfusH	9.55	kJ/mol	154.60	NIST
ΔvapH	[30.96; 35.20]	kJ/mol	[232.00; 366.60]
ΔvapH	33.70 ± 0.10	kJ/mol	232.00	NIST
ΔvapH	34.50 ± 0.10	kJ/mol	308.00	NIST
ΔvapH	34.10 ± 0.10	kJ/mol	315.00	NIST
ΔvapH	35.20	kJ/mol	329.50	NIST
ΔvapH	33.30 ± 0.10	kJ/mol	330.00	NIST
ΔvapH	35.00	kJ/mol	330.50	NIST
ΔvapH	32.70 ± 0.10	kJ/mol	338.00	NIST
ΔvapH	32.20 ± 0.10	kJ/mol	348.00	NIST
ΔvapH	34.40	kJ/mol	349.50	NIST
ΔvapH	30.96	kJ/mol	366.60	KDB
ΔvapH	31.12	kJ/mol	366.60	NIST
n0	1.39084		298.15	KDB
ρl	698.00	kg/m3	293.00	KDB
ΔfusS	[61.31; 61.77]	J/mol×K	[154.30; 154.58]
ΔfusS	61.31	J/mol×K	154.30	NIST
ΔfusS	61.77	J/mol×K	154.58	NIST
γ	0.02	N/m	298.20	KDB
λliquid	[0.10; 0.13]	W/m×K	[257.28; 331.56]
λliquid	0.13	W/m×K	257.28	Thermal Conductivity and Thermal Diffusivity of Sixteen Isomers of Alkanes: CnH2n+2 (n = 6 to 8)
λliquid	0.13	W/m×K	257.54	Thermal Conductivity and Thermal Diffusivity of Sixteen Isomers of Alkanes: CnH2n+2 (n = 6 to 8)
λliquid	0.13	W/m×K	257.83	Thermal Conductivity and Thermal Diffusivity of Sixteen Isomers of Alkanes: CnH2n+2 (n = 6 to 8)
λliquid	0.12	W/m×K	277.62	Thermal Conductivity and Thermal Diffusivity of Sixteen Isomers of Alkanes: CnH2n+2 (n = 6 to 8)
λliquid	0.12	W/m×K	277.89	Thermal Conductivity and Thermal Diffusivity of Sixteen Isomers of Alkanes: CnH2n+2 (n = 6 to 8)
λliquid	0.12	W/m×K	278.19	Thermal Conductivity and Thermal Diffusivity of Sixteen Isomers of Alkanes: CnH2n+2 (n = 6 to 8)
λliquid	0.11	W/m×K	296.33	Thermal Conductivity and Thermal Diffusivity of Sixteen Isomers of Alkanes: CnH2n+2 (n = 6 to 8)
λliquid	0.11	W/m×K	296.62	Thermal Conductivity and Thermal Diffusivity of Sixteen Isomers of Alkanes: CnH2n+2 (n = 6 to 8)
λliquid	0.11	W/m×K	296.78	Thermal Conductivity and Thermal Diffusivity of Sixteen Isomers of Alkanes: CnH2n+2 (n = 6 to 8)
λliquid	0.11	W/m×K	313.96	Thermal Conductivity and Thermal Diffusivity of Sixteen Isomers of Alkanes: CnH2n+2 (n = 6 to 8)
λliquid	0.11	W/m×K	314.27	Thermal Conductivity and Thermal Diffusivity of Sixteen Isomers of Alkanes: CnH2n+2 (n = 6 to 8)
λliquid	0.11	W/m×K	314.58	Thermal Conductivity and Thermal Diffusivity of Sixteen Isomers of Alkanes: CnH2n+2 (n = 6 to 8)
λliquid	0.10	W/m×K	331.22	Thermal Conductivity and Thermal Diffusivity of Sixteen Isomers of Alkanes: CnH2n+2 (n = 6 to 8)
λliquid	0.10	W/m×K	331.29	Thermal Conductivity and Thermal Diffusivity of Sixteen Isomers of Alkanes: CnH2n+2 (n = 6 to 8)
λliquid	0.10	W/m×K	331.56	Thermal Conductivity and Thermal Diffusivity of Sixteen Isomers of Alkanes: CnH2n+2 (n = 6 to 8)

Correlations

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[125.24; 450.16]	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			1.02980e+02
Coefficient B			-6.30040e+02
Coefficient C			6.24224e+00
Coefficient D			5.86160e-05
Coefficient E			-2.67990e-08
Temperature range, min.			200.00
Temperature range, max.			1500.00
Cp,gas	125.24	J/mol×K	200.00	Calculated Property
Cp,gas	186.92	J/mol×K	344.44	Calculated Property
Cp,gas	247.84	J/mol×K	488.89	Calculated Property
Cp,gas	298.14	J/mol×K	633.33	Calculated Property
Cp,gas	338.45	J/mol×K	777.78	Calculated Property
Cp,gas	370.80	J/mol×K	922.22	Calculated Property
Cp,gas	396.99	J/mol×K	1066.67	Calculated Property
Cp,gas	418.34	J/mol×K	1211.11	Calculated Property
Cp,gas	435.82	J/mol×K	1355.56	Calculated Property
Cp,gas	450.16	J/mol×K	1500.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
Cp,liquid	[200.94; 220.36]	J/mol×K	[250.00; 300.00]	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			1.52590e+02
Coefficient B			2.04560e+02
Coefficient C			-9.75955e-01
Coefficient D			2.17010e-02
Coefficient E			-2.22240e-05
Temperature range, min.			250.00
Temperature range, max.			300.00
Cp,liquid	200.94	J/mol×K	250.00	Calculated Property
Cp,liquid	202.93	J/mol×K	255.56	Calculated Property
Cp,liquid	204.98	J/mol×K	261.11	Calculated Property
Cp,liquid	207.06	J/mol×K	266.67	Calculated Property
Cp,liquid	209.19	J/mol×K	272.22	Calculated Property
Cp,liquid	211.36	J/mol×K	277.78	Calculated Property
Cp,liquid	213.57	J/mol×K	283.33	Calculated Property
Cp,liquid	215.81	J/mol×K	288.89	Calculated Property
Cp,liquid	218.07	J/mol×K	294.44	Calculated Property
Cp,liquid	220.36	J/mol×K	300.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
η	[0.0074899; 0.0001225]	Pa×s	[154.55; 432.40]	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			-1.18850e+01
Coefficient B			1.00110e+03
Coefficient C			1.03510e-01
Coefficient D			-3.54400e-07
Coefficient E			2.00000e+00
Temperature range, min.			154.55
Temperature range, max.			432.40
η	0.0074899	Pa×s	154.55	Calculated Property
η	0.0025862	Pa×s	185.42	Calculated Property
η	0.0012106	Pa×s	216.29	Calculated Property
η	0.0006851	Pa×s	247.17	Calculated Property
η	0.0004398	Pa×s	278.04	Calculated Property
η	0.0003082	Pa×s	308.91	Calculated Property
η	0.0002303	Pa×s	339.78	Calculated Property
η	0.0001804	Pa×s	370.66	Calculated Property
η	0.0001465	Pa×s	401.53	Calculated Property
η	0.0001225	Pa×s	432.40	Calculated Property

Property	Value	Unit	Temperature (K)	Source
ΔvapH	[41.73; 14.01]	kJ/mol	[154.55; 520.28]	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			5.32570e+01
Coefficient B			1.26470e+00
Coefficient C			-2.67290e+00
Coefficient D			3.11240e+00
Coefficient E			-1.31090e+00
Critical temperature, Tc (K)			5.40500e+02
Temperature range, min.			154.55
Temperature range, max.			520.28
ΔvapH	41.73	kJ/mol	154.55	Calculated Property
ΔvapH	39.92	kJ/mol	195.19	Calculated Property
ΔvapH	38.15	kJ/mol	235.82	Calculated Property
ΔvapH	36.27	kJ/mol	276.46	Calculated Property
ΔvapH	34.14	kJ/mol	317.10	Calculated Property
ΔvapH	31.68	kJ/mol	357.73	Calculated Property
ΔvapH	28.79	kJ/mol	398.37	Calculated Property
ΔvapH	25.32	kJ/mol	439.01	Calculated Property
ΔvapH	20.93	kJ/mol	479.64	Calculated Property
ΔvapH	14.01	kJ/mol	520.28	Calculated Property

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.67]	kPa	[264.53; 392.04]	The Yaws Handbook of Vapor Pressure
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			1.43548e+01
Coefficient B			-3.22861e+03
Coefficient C			-3.50210e+01
Temperature range, min.			264.53
Temperature range, max.			392.04
Pvap	1.33	kPa	264.53	Calculated Property
Pvap	3.02	kPa	278.70	Calculated Property
Pvap	6.25	kPa	292.87	Calculated Property
Pvap	12.01	kPa	307.03	Calculated Property
Pvap	21.61	kPa	321.20	Calculated Property
Pvap	36.79	kPa	335.37	Calculated Property
Pvap	59.71	kPa	349.54	Calculated Property
Pvap	92.94	kPa	363.70	Calculated Property
Pvap	139.47	kPa	377.87	Calculated Property
Pvap	202.67	kPa	392.04	Calculated Property
Pvap	[1.71e-06; 2880.77]	kPa	[154.55; 540.50]	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			8.30854e+01
Coefficient B			-6.91590e+03
Coefficient C			-1.02778e+01
Coefficient D			8.03928e-06
Coefficient E			2.00000e+00
Comment			Range stopped at Tc; ChemSep gives it to 540.6 K.
Temperature range, min.			154.55
Temperature range, max.			540.50
Pvap	1.71e-06	kPa	154.55	Calculated Property
Pvap	2.60e-03	kPa	197.43	Calculated Property
Pvap	0.21	kPa	240.32	Calculated Property
Pvap	3.60	kPa	283.20	Calculated Property
Pvap	25.85	kPa	326.08	Calculated Property
Pvap	108.53	kPa	368.97	Calculated Property
Pvap	323.05	kPa	411.85	Calculated Property
Pvap	766.71	kPa	454.73	Calculated Property
Pvap	1563.77	kPa	497.62	Calculated Property
Pvap	2880.77	kPa	540.50	Calculated Property
Pvap	[3.09e-06; 2826.97]	kPa	[154.55; 540.64]	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			6.25346e+01
Coefficient B			-6.12547e+03
Coefficient C			-7.08145e+00
Coefficient D			4.46212e-06
Coefficient E			0.00000e+00
Temperature range, min.			154.55
Temperature range, max.			540.64
Pvap	3.09e-06	kPa	154.55	Calculated Property
Pvap	3.20e-03	kPa	197.45	Calculated Property
Pvap	0.22	kPa	240.35	Calculated Property
Pvap	3.61	kPa	283.25	Calculated Property
Pvap	25.66	kPa	326.15	Calculated Property
Pvap	108.44	kPa	369.04	Calculated Property
Pvap	325.54	kPa	411.94	Calculated Property
Pvap	774.60	kPa	454.84	Calculated Property
Pvap	1567.35	kPa	497.74	Calculated Property
Pvap	2826.97	kPa	540.64	Calculated Property
Pvap	[6.41; 104.01]	kPa	[294.28; 367.52]	NIST
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			1.38259e+01
Coefficient B			-2.88772e+03
Coefficient C			-5.30040e+01
Reference			Forziati, Norris, et al., 1949
Comment			Coefficents calculated by NIST from author's data.
Temperature range, min.			294.28
Temperature range, max.			367.52
Pvap	6.41	kPa	294.28	Calculated Property
Pvap	9.47	kPa	302.42	Calculated Property
Pvap	13.65	kPa	310.56	Calculated Property
Pvap	19.24	kPa	318.69	Calculated Property
Pvap	26.58	kPa	326.83	Calculated Property
Pvap	36.04	kPa	334.97	Calculated Property
Pvap	48.03	kPa	343.11	Calculated Property
Pvap	63.02	kPa	351.24	Calculated Property
Pvap	81.50	kPa	359.38	Calculated Property
Pvap	104.01	kPa	367.52	Calculated Property

Property	Value	Unit	Temperature (K)	Source
ρl	[808.79; 260.53]	kg/m3	[154.55; 540.50]	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			5.62253e+01
Coefficient B			2.48130e-01
Coefficient C			5.40610e+02
Coefficient D			2.70740e-01
Comment			Range stopped at Tc; ChemSep gives it to 540.6 K.
Temperature range, min.			154.55
Temperature range, max.			540.50
ρl	808.79	kg/m3	154.55	Calculated Property
ρl	777.13	kg/m3	197.43	Calculated Property
ρl	743.87	kg/m3	240.32	Calculated Property
ρl	708.60	kg/m3	283.20	Calculated Property
ρl	670.76	kg/m3	326.08	Calculated Property
ρl	629.43	kg/m3	368.97	Calculated Property
ρl	583.08	kg/m3	411.85	Calculated Property
ρl	528.56	kg/m3	454.73	Calculated Property
ρl	457.36	kg/m3	497.62	Calculated Property
ρl	260.53	kg/m3	540.50	Calculated Property

Property	Value	Unit	Temperature (K)	Source
γ	[0.03; 0.01]	N/m	[154.15; 366.65]	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			5.07091e-02
Coefficient B			-1.03200e-04
Coefficient C			0.00000e+00
Coefficient D			0.00000e+00
Coefficient E			0.00000e+00
Temperature range, min.			154.15
Temperature range, max.			366.65
γ	0.03	N/m	154.15	Calculated Property
γ	0.03	N/m	177.76	Calculated Property
γ	0.03	N/m	201.37	Calculated Property
γ	0.03	N/m	224.98	Calculated Property
γ	0.03	N/m	248.59	Calculated Property
γ	0.02	N/m	272.21	Calculated Property
γ	0.02	N/m	295.82	Calculated Property
γ	0.02	N/m	319.43	Calculated Property
γ	0.02	N/m	343.04	Calculated Property
γ	0.01	N/m	366.65	Calculated Property
γ	[0.04; 8.67e-04]	N/m	[154.55; 520.28]	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			-1.20770e-02
Coefficient B			2.09860e+01
Coefficient C			-3.04080e+00
Coefficient D			-2.29740e-04
Coefficient E			-4.53330e-06
Temperature range, min.			154.55
Temperature range, max.			520.28
γ	0.04	N/m	154.55	Calculated Property
γ	0.03	N/m	195.19	Calculated Property
γ	0.03	N/m	235.82	Calculated Property
γ	0.02	N/m	276.46	Calculated Property
γ	0.02	N/m	317.10	Calculated Property
γ	0.01	N/m	357.73	Calculated Property
γ	0.01	N/m	398.37	Calculated Property
γ	0.01	N/m	439.01	Calculated Property
γ	0.00	N/m	479.64	Calculated Property
γ	8.67e-04	N/m	520.28	Calculated Property

Property	Value	Unit	Temperature (K)	Source
λgas	[0.00; 0.10]	W/m×K	[154.55; 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			6.55190e-05
Coefficient B			1.06910e+00
Coefficient C			-7.44230e+01
Coefficient D			1.61360e+05
Temperature range, min.			154.55
Temperature range, max.			1000.00
λgas	0.00	W/m×K	154.55	Calculated Property
λgas	0.01	W/m×K	248.49	Calculated Property
λgas	0.02	W/m×K	342.43	Calculated Property
λgas	0.03	W/m×K	436.37	Calculated Property
λgas	0.04	W/m×K	530.31	Calculated Property
λgas	0.05	W/m×K	624.24	Calculated Property
λgas	0.06	W/m×K	718.18	Calculated Property
λgas	0.07	W/m×K	812.12	Calculated Property
λgas	0.09	W/m×K	906.06	Calculated Property
λgas	0.10	W/m×K	1000.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
λliquid	[0.14; 0.09]	W/m×K	[154.55; 366.62]	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			-5.55740e-02
Coefficient B			4.78740e+00
Coefficient C			-1.57460e+00
Coefficient D			-3.94500e-04
Coefficient E			-1.63030e-06
Temperature range, min.			154.55
Temperature range, max.			366.62
λliquid	0.14	W/m×K	154.55	Calculated Property
λliquid	0.13	W/m×K	178.11	Calculated Property
λliquid	0.13	W/m×K	201.68	Calculated Property
λliquid	0.12	W/m×K	225.24	Calculated Property
λliquid	0.12	W/m×K	248.80	Calculated Property
λliquid	0.11	W/m×K	272.37	Calculated Property
λliquid	0.11	W/m×K	295.93	Calculated Property
λliquid	0.10	W/m×K	319.49	Calculated Property
λliquid	0.10	W/m×K	343.06	Calculated Property
λliquid	0.09	W/m×K	366.62	Calculated Property

Similar Compounds

Find more compounds similar to Pentane, 3-ethyl-.

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.
• Cheméo Relay (1.0)
• 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
• Crippen Method
• Thermal Conductivity and Thermal Diffusivity of Sixteen Isomers of Alkanes: CnH2n+2 (n = 6 to 8)
• Joback Method
• KDB
• 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

Note: Cheméo is only indexing the data, follow the source links to retrieve the latest data. The source is also providing more information like the publication year, authors and more. Take the time to validate and double check the source of the data.
Outlier This icon means that the value is more than 2 standard deviations away from the property mean.
Calculated This icon marks a calculated value or equation: a prediction, not a measurement.
Compiled This icon marks a compiled value or equation: taken from a data compilation such as ChemSep, not from an original measurement report.
These property values are available through the Cheméo API. A free account gives you an access key.