Chemical Properties of Pentane, 2,2,3,3-tetramethyl- (CAS 7154-79-2)

InChI

InChI=1S/C9H20/c1-7-9(5,6)8(2,3)4/h7H2,1-6H3

InChI Key

QUKOJKFJIHSBKV-UHFFFAOYSA-N

Formula

C9H20

SMILES

CCC(C)(C)C(C)(C)C

Molecular Weight¹

128.26

CAS

7154-79-2

Other Names

• 2,2,3,3-Tetramethylpentane

• 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).
• 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_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).
• NFPA Fire : NFPA Fire Rating.
• P_c : Critical Pressure (kPa).
• P_triple : Triple Point Pressure (kPa).
• P_vap : Vapor pressure (kPa).
• n₀ : Refractive Index.
• 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°_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).
• Z_c : Critical Compressibility.
• Z_ra : Rackett Parameter.
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ω	[0.2793; 0.3040]
ω	0.3005		PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
ω	0.2793		Passut and Danner (1973), critical constants and acentric factors Compiled value
ω	0.3040		ChemSep v8.3 pure component data Compiled value
ω	0.3030		KDB
AP	341.150	K	KDB
ΔcH°liquid	-6121.60 ± 1.50	kJ/mol	NIST
μ	0.00	debye	ChemSep v8.3 pure component data Compiled value
ΔfG°	[34.33; 37.40]	kJ/mol
ΔfG°	37.40	kJ/mol	ChemSep v8.3 pure component data Compiled value
ΔfG°	34.33	kJ/mol	KDB
Δc,grossH	6121.61	kJ/mol	KDB
Δc,netH	5681.496	kJ/mol	KDB
ΔfH°gas	[-237.40; -236.86]	kJ/mol
ΔfH°gas	-236.86	kJ/mol	ChemSep v8.3 pure component data Compiled value
ΔfH°gas	-237.40	kJ/mol	KDB
ΔfusH°	4.24	kJ/mol	Joback Calculated Property
ΔvapH°	41.20	kJ/mol	NIST
IE	9.45	eV	Relay (1.0) Calculated Property
log10WS	-4.53		Relay (1.0) Calculated Property
logPoct/wat	3.469		Crippen Calculated Property
McVol	137.670	ml/mol	McGowan Calculated Property
NFPA Fire	3		KDB
Pc	[2737.22; 2741.00]	kPa
Pc	2740.00	kPa	IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 5 Compiled value
Pc	2739.83	kPa	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Pc	Outlier 2737.22	kPa	Passut and Danner (1973), critical constants and acentric factors Compiled value
Pc	2740.00	kPa	ChemSep v8.3 pure component data Compiled value
Pc	2740.00	kPa	KDB
Pc	2740.00 ± 40.00	kPa	NIST
Pc	2741.00 ± 20.00	kPa	NIST
Ptriple	0.13	kPa	ChemSep v8.3 pure component data Compiled value
Inp	[844.00; 862.00]
Inp	856.00		NIST
Inp	851.70		NIST
Inp	857.10		NIST
Inp	847.70		NIST
Inp	847.80		NIST
Inp	855.00		NIST
Inp	855.80		NIST
Inp	852.00		NIST
Inp	858.00		NIST
Inp	852.70		NIST
Inp	856.00		NIST
Inp	847.00		NIST
Inp	850.00		NIST
Inp	853.00		NIST
Inp	Outlier 862.00		NIST
Inp	854.00		NIST
Inp	Outlier 844.00		NIST
Inp	852.00		NIST
Inp	849.00		NIST
Inp	852.00		NIST
Inp	855.00		NIST
Inp	856.00		NIST
Inp	855.00		NIST
Inp	852.00		NIST
S°liquid	334.80	J/mol×K	NIST
Tboil	[413.39; 413.50]	K
Tboil	413.44	K	ChemSep v8.3 pure component data Compiled value
Tboil	413.44	K	KDB
Tboil	Outlier 413.50	K	NIST
Tboil	413.42 ± 0.20	K	NIST
Tboil	413.40 ± 0.40	K	NIST
Tboil	413.42 ± 0.03	K	NIST
Tboil	413.41 ± 0.10	K	NIST
Tboil	413.39 ± 0.20	K	NIST
Tc	[607.50; 610.87]	K
Tc	607.50	K	IUPAC Vapor-Liquid Critical Properties of Elements and Compounds, part 5 Compiled value
Tc	607.50	K	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Tc	Outlier 610.87	K	Passut and Danner (1973), critical constants and acentric factors Compiled value
Tc	607.60	K	ChemSep v8.3 pure component data Compiled value
Tc	607.50	K	KDB
Tc	607.50 ± 0.50	K	NIST
Tc	607.55 ± 0.20	K	NIST
Tfus	[261.52; 263.30]	K
Tfus	263.25	K	Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) Compiled value
Tfus	263.26	K	ChemSep v8.3 pure component data Compiled value
Tfus	263.30	K	KDB
Tfus	263.15 ± 0.30	K	NIST
Tfus	263.11 ± 0.10	K	NIST
Tfus	263.25 ± 0.08	K	NIST
Tfus	263.15 ± 0.50	K	NIST
Tfus	Outlier 261.52 ± 0.20	K	NIST
Tfus	263.25 ± 0.10	K	NIST
Ttriple	[263.26; 263.40]	K
Ttriple	263.26	K	ChemSep v8.3 pure component data Compiled value
Ttriple	263.40 ± 0.02	K	NIST
Ttriple	263.40 ± 0.02	K	NIST
UQi	5.63		ChemSep v8.3 pure component data Compiled value
URi	6.52		ChemSep v8.3 pure component data Compiled value
Vc	[0.478; 0.494]	m3/kmol
Vc	0.494	m3/kmol	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Vc	0.478	m3/kmol	ChemSep v8.3 pure component data Compiled value
Zc	0.2690000		ChemSep v8.3 pure component data Compiled value
Zra	0.27		ChemSep v8.3 pure component data Compiled value

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,liquid	[255.20; 325.70]	J/mol×K	[270.00; 390.00]
Cp,liquid	255.20	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	257.00	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	261.00	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	266.80	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	271.50	J/mol×K	298.15	NIST
Cp,liquid	271.50	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	272.60	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
Cp,liquid	278.40	J/mol×K	310.00	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	284.30	J/mol×K	320.00	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	290.10	J/mol×K	330.00	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	296.00	J/mol×K	340.00	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	301.90	J/mol×K	350.00	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	307.80	J/mol×K	360.00	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	313.80	J/mol×K	370.00	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	319.70	J/mol×K	380.00	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	325.70	J/mol×K	390.00	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	[2.33; 7.33]	kJ/mol	[174.50; 263.40]
ΔfusH	7.33	kJ/mol	174.50	NIST
ΔfusH	2.33	kJ/mol	263.40	NIST
ΔfusH	2.33	kJ/mol	263.40	NIST
ΔvapH	[35.27; 39.20]	kJ/mol	[371.50; 413.40]
ΔvapH	39.20	kJ/mol	371.50	NIST
ΔvapH	35.27	kJ/mol	413.40	KDB
n0	1.42140		298.15	KDB
ρl	757.00	kg/m3	293.00	KDB
ΔfusS	[8.90; 42.00]	J/mol×K	[174.50; 263.40]
ΔfusS	42.00	J/mol×K	174.50	NIST
ΔfusS	8.90	J/mol×K	263.40	NIST
γ	0.02	N/m	298.20	KDB

Correlations

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[138.36; 616.44]	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			5.50480e+01
Coefficient B			-3.57310e+02
Coefficient C			6.10524e+00
Coefficient D			5.52090e-04
Coefficient E			-1.62110e-07
Temperature range, min.			200.00
Temperature range, max.			1500.00
Cp,gas	138.36	J/mol×K	200.00	Calculated Property
Cp,gas	243.50	J/mol×K	344.44	Calculated Property
Cp,gas	326.98	J/mol×K	488.89	Calculated Property
Cp,gas	393.95	J/mol×K	633.33	Calculated Property
Cp,gas	449.38	J/mol×K	777.78	Calculated Property
Cp,gas	496.06	J/mol×K	922.22	Calculated Property
Cp,gas	535.50	J/mol×K	1066.67	Calculated Property
Cp,gas	568.46	J/mol×K	1211.11	Calculated Property
Cp,gas	595.37	J/mol×K	1355.56	Calculated Property
Cp,gas	616.44	J/mol×K	1500.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
Cp,liquid	[251.33; 331.26]	J/mol×K	[263.40; 400.00]	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			1.16740e+02
Coefficient B			-8.61040e+01
Coefficient C			4.22224e+00
Coefficient D			4.63080e-03
Coefficient E			-3.06800e-06
Temperature range, min.			263.40
Temperature range, max.			400.00
Cp,liquid	251.33	J/mol×K	263.40	Calculated Property
Cp,liquid	260.06	J/mol×K	278.58	Calculated Property
Cp,liquid	268.87	J/mol×K	293.76	Calculated Property
Cp,liquid	277.73	J/mol×K	308.93	Calculated Property
Cp,liquid	286.64	J/mol×K	324.11	Calculated Property
Cp,liquid	295.58	J/mol×K	339.29	Calculated Property
Cp,liquid	304.53	J/mol×K	354.47	Calculated Property
Cp,liquid	313.47	J/mol×K	369.64	Calculated Property
Cp,liquid	322.39	J/mol×K	384.82	Calculated Property
Cp,liquid	331.26	J/mol×K	400.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
η	[0.0015410; 0.0000518]	Pa×s	[263.26; 546.30]	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			-9.75970e+00
Coefficient B			1.44120e+03
Coefficient C			-3.77720e-01
Coefficient D			-1.22600e-06
Coefficient E			2.00000e+00
Temperature range, min.			263.26
Temperature range, max.			546.30
η	0.0015410	Pa×s	263.26	Calculated Property
η	0.0008058	Pa×s	294.71	Calculated Property
η	0.0004725	Pa×s	326.16	Calculated Property
η	0.0003014	Pa×s	357.61	Calculated Property
η	0.0002048	Pa×s	389.06	Calculated Property
η	0.0001461	Pa×s	420.50	Calculated Property
η	0.0001083	Pa×s	451.95	Calculated Property
η	0.0000828	Pa×s	483.40	Calculated Property
η	0.0000648	Pa×s	514.85	Calculated Property
η	0.0000518	Pa×s	546.30	Calculated Property

Property	Value	Unit	Temperature (K)	Source
ΔvapH	[42.99; 2.03]	kJ/mol	[263.26; 607.50]	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			5.37130e+01
Coefficient B			3.98990e-01
Coefficient C			-3.29980e-02
Coefficient D			6.37400e-02
Coefficient E			-5.35000e-02
Critical temperature, Tc (K)			6.07600e+02
Temperature range, min.			263.26
Temperature range, max.			607.50
ΔvapH	42.99	kJ/mol	263.26	Calculated Property
ΔvapH	41.06	kJ/mol	301.51	Calculated Property
ΔvapH	38.99	kJ/mol	339.76	Calculated Property
ΔvapH	36.74	kJ/mol	378.01	Calculated Property
ΔvapH	34.26	kJ/mol	416.26	Calculated Property
ΔvapH	31.48	kJ/mol	454.50	Calculated Property
ΔvapH	28.25	kJ/mol	492.75	Calculated Property
ΔvapH	24.29	kJ/mol	531.00	Calculated Property
ΔvapH	18.80	kJ/mol	569.25	Calculated Property
ΔvapH	2.03	kJ/mol	607.50	Calculated Property

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.64]	kPa	[299.10; 442.41]	The Yaws Handbook of Vapor Pressure
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			1.39261e+01
Coefficient B			-3.35151e+03
Coefficient C			-5.33610e+01
Temperature range, min.			299.10
Temperature range, max.			442.41
Pvap	1.33	kPa	299.10	Calculated Property
Pvap	3.06	kPa	315.02	Calculated Property
Pvap	6.37	kPa	330.95	Calculated Property
Pvap	12.27	kPa	346.87	Calculated Property
Pvap	22.08	kPa	362.79	Calculated Property
Pvap	37.52	kPa	378.72	Calculated Property
Pvap	60.68	kPa	394.64	Calculated Property
Pvap	94.01	kPa	410.56	Calculated Property
Pvap	140.30	kPa	426.49	Calculated Property
Pvap	202.64	kPa	442.41	Calculated Property
Pvap	[0.12; 2740.00]	kPa	[263.26; 585.66]	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			1.32141e+02
Coefficient B			-9.53545e+03
Coefficient C			-1.77862e+01
Coefficient D			1.57521e-05
Coefficient E			2.00000e+00
Comment			Range stopped where the equation exceeds Pc; ChemSep gives it to 607.5 K.
Temperature range, min.			263.26
Temperature range, max.			585.66
Pvap	0.12	kPa	263.26	Calculated Property
Pvap	1.31	kPa	299.08	Calculated Property
Pvap	7.61	kPa	334.90	Calculated Property
Pvap	29.12	kPa	370.73	Calculated Property
Pvap	84.42	kPa	406.55	Calculated Property
Pvap	202.79	kPa	442.37	Calculated Property
Pvap	429.00	kPa	478.19	Calculated Property
Pvap	833.94	kPa	514.02	Calculated Property
Pvap	1535.82	kPa	549.84	Calculated Property
Pvap	2740.00	kPa	585.66	Calculated Property
Pvap	[0.13; 2786.82]	kPa	[263.26; 610.85]	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			7.97422e+01
Coefficient B			-7.54526e+03
Coefficient C			-9.60312e+00
Coefficient D			5.74899e-06
Coefficient E			0.00000e+00
Temperature range, min.			263.26
Temperature range, max.			610.85
Pvap	0.13	kPa	263.26	Calculated Property
Pvap	1.55	kPa	301.88	Calculated Property
Pvap	9.58	kPa	340.50	Calculated Property
Pvap	38.27	kPa	379.12	Calculated Property
Pvap	113.29	kPa	417.74	Calculated Property
Pvap	271.35	kPa	456.37	Calculated Property
Pvap	558.08	kPa	494.99	Calculated Property
Pvap	1027.29	kPa	533.61	Calculated Property
Pvap	1743.25	kPa	572.23	Calculated Property
Pvap	2786.82	kPa	610.85	Calculated Property
Pvap	[6.41; 103.99]	kPa	[330.98; 414.44]	NIST
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			1.37159e+01
Coefficient B			-3.22242e+03
Coefficient C			-5.92180e+01
Reference			Forziati, Norris, et al., 1949, 2
Comment			Coefficents calculated by NIST from author's data.
Temperature range, min.			330.98
Temperature range, max.			414.44
Pvap	6.41	kPa	330.98	Calculated Property
Pvap	9.48	kPa	340.25	Calculated Property
Pvap	13.68	kPa	349.53	Calculated Property
Pvap	19.29	kPa	358.80	Calculated Property
Pvap	26.64	kPa	368.07	Calculated Property
Pvap	36.11	kPa	377.35	Calculated Property
Pvap	48.11	kPa	386.62	Calculated Property
Pvap	63.09	kPa	395.89	Calculated Property
Pvap	81.55	kPa	405.17	Calculated Property
Pvap	103.99	kPa	414.44	Calculated Property
Pvap	[6.41; 103.99]	kPa	[330.98; 414.44]	NIST
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			1.37159e+01
Coefficient B			-3.22242e+03
Coefficient C			-5.92180e+01
Reference			Forziati, Norris, et al., 1949
Comment			Coefficents calculated by NIST from author's data.
Temperature range, min.			330.98
Temperature range, max.			414.44
Pvap	6.41	kPa	330.98	Calculated Property
Pvap	9.48	kPa	340.25	Calculated Property
Pvap	13.68	kPa	349.53	Calculated Property
Pvap	19.29	kPa	358.80	Calculated Property
Pvap	26.64	kPa	368.07	Calculated Property
Pvap	36.11	kPa	377.35	Calculated Property
Pvap	48.11	kPa	386.62	Calculated Property
Pvap	63.09	kPa	395.89	Calculated Property
Pvap	81.55	kPa	405.17	Calculated Property
Pvap	103.99	kPa	414.44	Calculated Property

Property	Value	Unit	Temperature (K)	Source
ρl	[778.37; 418.61]	kg/m3	[263.26; 589.38]	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			7.56089e+01
Coefficient B			2.82670e-01
Coefficient C			6.07600e+02
Coefficient D			2.95720e-01
Temperature range, min.			263.26
Temperature range, max.			589.38
ρl	778.37	kg/m3	263.26	Calculated Property
ρl	751.94	kg/m3	299.50	Calculated Property
ρl	724.23	kg/m3	335.73	Calculated Property
ρl	694.96	kg/m3	371.97	Calculated Property
ρl	663.71	kg/m3	408.20	Calculated Property
ρl	629.87	kg/m3	444.44	Calculated Property
ρl	592.42	kg/m3	480.67	Calculated Property
ρl	549.48	kg/m3	516.91	Calculated Property
ρl	496.79	kg/m3	553.14	Calculated Property
ρl	418.61	kg/m3	589.38	Calculated Property

Property	Value	Unit	Temperature (K)	Source
γ	[0.03; 1.22e-05]	N/m	[263.26; 603.37]	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			-6.75050e-02
Coefficient B			-4.00860e+01
Coefficient C			-1.77010e+00
Coefficient D			-1.91280e-03
Coefficient E			8.11110e-07
Comment			Range stopped where the equation turns negative; ChemSep gives it to 607.5 K.
Temperature range, min.			263.26
Temperature range, max.			603.37
γ	0.03	N/m	263.26	Calculated Property
γ	0.02	N/m	301.05	Calculated Property
γ	0.02	N/m	338.84	Calculated Property
γ	0.02	N/m	376.63	Calculated Property
γ	0.01	N/m	414.42	Calculated Property
γ	0.01	N/m	452.21	Calculated Property
γ	0.01	N/m	490.00	Calculated Property
γ	0.00	N/m	527.79	Calculated Property
γ	0.00	N/m	565.58	Calculated Property
γ	1.22e-05	N/m	603.37	Calculated Property

Property	Value	Unit	Temperature (K)	Source
λgas	[0.01; 0.10]	W/m×K	[263.26; 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			1.49170e-05
Coefficient B			1.26610e+00
Coefficient C			-2.11670e+02
Coefficient D			1.55870e+05
Temperature range, min.			263.26
Temperature range, max.			1000.00
λgas	0.01	W/m×K	263.26	Calculated Property
λgas	0.01	W/m×K	345.12	Calculated Property
λgas	0.02	W/m×K	426.98	Calculated Property
λgas	0.03	W/m×K	508.84	Calculated Property
λgas	0.04	W/m×K	590.70	Calculated Property
λgas	0.06	W/m×K	672.56	Calculated Property
λgas	0.07	W/m×K	754.42	Calculated Property
λgas	0.08	W/m×K	836.28	Calculated Property
λgas	0.09	W/m×K	918.14	Calculated Property
λgas	0.10	W/m×K	1000.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
λliquid	[0.12; 0.09]	W/m×K	[263.26; 413.44]	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			-4.57010e-03
Coefficient B			-1.20110e+02
Coefficient C			-7.75000e-01
Coefficient D			-3.62560e-03
Coefficient E			9.65070e-07
Temperature range, min.			263.26
Temperature range, max.			413.44
λliquid	0.12	W/m×K	263.26	Calculated Property
λliquid	0.11	W/m×K	279.95	Calculated Property
λliquid	0.11	W/m×K	296.63	Calculated Property
λliquid	0.11	W/m×K	313.32	Calculated Property
λliquid	0.10	W/m×K	330.01	Calculated Property
λliquid	0.10	W/m×K	346.69	Calculated Property
λliquid	0.10	W/m×K	363.38	Calculated Property
λliquid	0.09	W/m×K	380.07	Calculated Property
λliquid	0.09	W/m×K	396.75	Calculated Property
λliquid	0.09	W/m×K	413.44	Calculated Property

Similar Compounds

Find more compounds similar to Pentane, 2,2,3,3-tetramethyl-.

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).
• 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.
• 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
• 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.