Chemical Properties of Cyclopentane, 1,1-dimethyl- (CAS 1638-26-2)

InChI

InChI=1S/C7H14/c1-7(2)5-3-4-6-7/h3-6H2,1-2H3

InChI Key

QWHNJUXXYKPLQM-UHFFFAOYSA-N

Formula

C7H14

SMILES

CC1(C)CCCC1

Molecular Weight¹

98.19

CAS

1638-26-2

Other Names

• 1,1-Dimethylcyclopentane
• Gem-Dimethylcyclopentane

• 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).
• 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_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	[0.2724; 0.2730]
ω	0.2730		PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
ω	0.2727		Passut and Danner (1973), critical constants and acentric factors Compiled value
ω	0.2724		ChemSep v8.3 pure component data Compiled value
ω	0.2730		KDB
AP	318.150	K	KDB
ΔcH°liquid	-4583.30 ± 1.00	kJ/mol	NIST
μ	0.00	debye	ChemSep v8.3 pure component data Compiled value
ΔfG°	[39.04; 39.06]	kJ/mol
ΔfG°	39.04	kJ/mol	ChemSep v8.3 pure component data Compiled value
ΔfG°	39.06	kJ/mol	KDB
Δc,grossH	4583.32	kJ/mol	KDB
Δc,netH	4275.253	kJ/mol	KDB
ΔfH°gas	[-138.40; -138.28]	kJ/mol
ΔfH°gas	-138.28	kJ/mol	ChemSep v8.3 pure component data Compiled value
ΔfH°gas	-138.40	kJ/mol	KDB
ΔfH°gas	-138.30 ± 1.20	kJ/mol	NIST
ΔfH°liquid	-172.10 ± 1.10	kJ/mol	NIST
ΔfusH°	1.52	kJ/mol	Joback Calculated Property
ΔvapH°	[33.80; 33.80]	kJ/mol
ΔvapH°	33.80	kJ/mol	NIST
ΔvapH°	33.80	kJ/mol	NIST
IE	9.46 ± 0.05	eV	NIST
logPoct/wat	2.587		Crippen Calculated Property
McVol	98.630	ml/mol	McGowan Calculated Property
Pc	[3440.00; 3447.38]	kPa
Pc	3445.05	kPa	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Pc	3447.38	kPa	Passut and Danner (1973), critical constants and acentric factors Compiled value
Pc	3445.00	kPa	ChemSep v8.3 pure component data Compiled value
Pc	3440.00	kPa	KDB
Ptriple	9.05e-03	kPa	ChemSep v8.3 pure component data Compiled value
Inp	[662.30; 684.00]
Inp	665.00		NIST
Inp	675.50		NIST
Inp	669.00		NIST
Inp	675.90		NIST
Inp	676.00		NIST
Inp	676.80		NIST
Inp	676.10		NIST
Inp	675.80		NIST
Inp	673.30		NIST
Inp	677.40		NIST
Inp	671.00		NIST
Inp	675.00		NIST
Inp	679.00		NIST
Inp	672.40		NIST
Inp	676.50		NIST
Inp	675.00		NIST
Inp	676.00		NIST
Inp	677.00		NIST
Inp	671.70		NIST
Inp	673.60		NIST
Inp	675.40		NIST
Inp	676.90		NIST
Inp	669.00		NIST
Inp	671.00		NIST
Inp	673.00		NIST
Inp	675.00		NIST
Inp	677.00		NIST
Inp	679.00		NIST
Inp	675.90		NIST
Inp	676.10		NIST
Inp	674.00		NIST
Inp	674.00		NIST
Inp	674.00		NIST
Inp	673.20		NIST
Inp	673.20		NIST
Inp	Outlier 684.00		NIST
Inp	675.00		NIST
Inp	679.00		NIST
Inp	674.00		NIST
Inp	677.00		NIST
Inp	672.00		NIST
Inp	674.00		NIST
Inp	675.00		NIST
Inp	677.00		NIST
Inp	680.00		NIST
Inp	674.00		NIST
Inp	672.00		NIST
Inp	Outlier 683.00		NIST
Inp	669.00		NIST
Inp	674.00		NIST
Inp	677.00		NIST
Inp	681.00		NIST
Inp	677.00		NIST
Inp	679.00		NIST
Inp	671.10		NIST
Inp	669.70		NIST
Inp	Outlier 662.30		NIST
Inp	Outlier 663.04		NIST
Inp	668.50		NIST
Inp	665.52		NIST
Inp	665.59		NIST
Inp	665.48		NIST
Inp	665.63		NIST
Inp	666.00		NIST
Inp	672.00		NIST
Inp	673.00		NIST
Inp	677.00		NIST
Inp	671.00		NIST
Inp	672.00		NIST
Inp	666.00		NIST
Inp	670.00		NIST
Inp	673.00		NIST
Inp	669.00		NIST
Inp	669.00		NIST
Inp	Outlier 683.00		NIST
Inp	673.00		NIST
Inp	665.00		NIST
Inp	675.00		NIST
Inp	679.00		NIST
Inp	669.70		NIST
Inp	665.59		NIST
Inp	669.00		NIST
Inp	665.00		NIST
Inp	676.80		NIST
Inp	671.00		NIST
Inp	675.00		NIST
Inp	675.40		NIST
Inp	674.00		NIST
Inp	Outlier 684.00		NIST
Inp	672.00		NIST
Inp	677.00		NIST
S°gas	359.28	J/mol×K	NIST
S°liquid	265.01	J/mol×K	NIST
Tboil	[360.00; 361.35]	K
Tboil	361.00	K	ChemSep v8.3 pure component data Compiled value
Tboil	361.00	K	KDB
Tboil	360.70	K	NIST
Tboil	361.00 ± 0.20	K	NIST
Tboil	361.05 ± 0.30	K	NIST
Tboil	360.99 ± 0.02	K	NIST
Tboil	361.35 ± 0.30	K	NIST
Tboil	360.65 ± 0.20	K	NIST
Tboil	361.20 ± 0.30	K	NIST
Tboil	360.65 ± 0.50	K	NIST
Tboil	360.70 ± 0.30	K	NIST
Tboil	361.30 ± 0.60	K	NIST
Tboil	Outlier 360.00 ± 1.00	K	NIST
Tc	[547.00; 547.04]	K
Tc	547.00	K	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Tc	547.04	K	Passut and Danner (1973), critical constants and acentric factors Compiled value
Tc	547.00	K	ChemSep v8.3 pure component data Compiled value
Tc	547.00	K	KDB
Tfus	[196.00; 203.42]	K
Tfus	203.25	K	Jean-Claude Bradley Open Melting Point Dataset (2014, CC0) Compiled value
Tfus	203.36	K	ChemSep v8.3 pure component data Compiled value
Tfus	203.40	K	KDB
Tfus	203.27 ± 0.20	K	NIST
Tfus	203.24 ± 0.20	K	NIST
Tfus	203.42 ± 0.06	K	NIST
Tfus	203.34 ± 0.08	K	NIST
Tfus	203.34 ± 0.07	K	NIST
Tfus	203.35 ± 0.05	K	NIST
Tfus	203.24 ± 0.30	K	NIST
Tfus	203.24 ± 0.30	K	NIST
Tfus	203.42 ± 0.10	K	NIST
Tfus	197.28 ± 4.00	K	NIST
Tfus	203.16 ± 1.00	K	NIST
Tfus	196.75 ± 0.40	K	NIST
Tfus	196.75 ± 5.00	K	NIST
Tfus	Outlier 196.00 ± 5.00	K	NIST
Ttriple	[203.67; 203.68]	K
Ttriple	203.68	K	ChemSep v8.3 pure component data Compiled value
Ttriple	203.68 ± 0.05	K	NIST
Ttriple	203.67 ± 0.02	K	NIST
Ttriple	203.67 ± 0.03	K	NIST
Ttriple	203.67 ± 0.02	K	NIST
Ttriple	203.68 ± 0.05	K	NIST
UQi	3.86		ChemSep v8.3 pure component data Compiled value
URi	4.72		ChemSep v8.3 pure component data Compiled value
Vc	[0.360; 0.360]	m3/kmol
Vc	0.360	m3/kmol	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Vc	0.360	m3/kmol	ChemSep v8.3 pure component data Compiled value
Vc	0.360	m3/kmol	KDB
VCOSTALD	0.38	m3/kmol	Hankinson and Thomson (1979), COSTALD parameters Compiled value
ωSRK	0.27		Hankinson and Thomson (1979), COSTALD parameters Compiled value
Zc	[0.2722930; 0.2730000]
Zc	0.2730000		ChemSep v8.3 pure component data Compiled value
Zc	0.2722930		KDB
Zra	[0.27; 0.28]
Zra	0.28		Hankinson and Thomson (1979), COSTALD parameters Compiled value
Zra	0.27		ChemSep v8.3 pure component data Compiled value
Zra	0.28		KDB

Cheméo can also estimate Log10 of Water solubility in mol/l for this compound, but it falls outside the models' validated range, so it is not shown here. Open the prediction tool to compute it on demand.

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,liquid	187.36	J/mol×K	299.81	NIST
Csat	[154.60; 187.50]	J/mol×K	[210.00; 300.00]
Csat	154.60	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	157.50	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	160.70	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	164.20	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	167.80	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	171.70	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	175.60	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	176.80	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	179.60	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	183.60	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
Csat	186.80	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	187.50	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	[1.09; 6.49]	kJ/mol	[146.80; 203.70]
ΔfusH	6.49	kJ/mol	146.80	NIST
ΔfusH	1.09	kJ/mol	203.70	NIST
ΔfusH	1.09	kJ/mol	203.70	NIST
ΔvapH	[30.29; 34.00]	kJ/mol	[323.50; 361.00]
ΔvapH	34.00	kJ/mol	323.50	NIST
ΔvapH	33.80	kJ/mol	325.50	NIST
ΔvapH	30.29	kJ/mol	361.00	KDB
n0	1.41091		298.15	KDB
ρl	759.00	kg/m3	289.00	KDB
ΔfusS	[5.34; 44.18]	J/mol×K	[146.80; 203.70]
ΔfusS	44.18	J/mol×K	146.80	NIST
ΔfusS	5.34	J/mol×K	203.70	NIST
γ	0.02	N/m	293.20	KDB

Correlations

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[97.49; 421.34]	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			8.40400e+01
Coefficient B			-8.31970e+02
Coefficient C			6.87224e+00
Coefficient D			-6.04840e-04
Coefficient E			1.82500e-07
Temperature range, min.			200.00
Temperature range, max.			1500.00
Cp,gas	97.49	J/mol×K	200.00	Calculated Property
Cp,gas	155.57	J/mol×K	344.44	Calculated Property
Cp,gas	220.82	J/mol×K	488.89	Calculated Property
Cp,gas	274.37	J/mol×K	633.33	Calculated Property
Cp,gas	315.07	J/mol×K	777.78	Calculated Property
Cp,gas	345.83	J/mol×K	922.22	Calculated Property
Cp,gas	369.69	J/mol×K	1066.67	Calculated Property
Cp,gas	389.08	J/mol×K	1211.11	Calculated Property
Cp,gas	405.85	J/mol×K	1355.56	Calculated Property
Cp,gas	421.34	J/mol×K	1500.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
Cp,liquid	[153.60; 215.96]	J/mol×K	[213.87; 361.00]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A + exp(B/T + C + D·T + E·T²) Y is Cp,liquid in J/mol×K, T in K
Coefficient A			6.34030e+01
Coefficient B			-7.69120e+01
Coefficient C			4.20424e+00
Coefficient D			3.36850e-03
Coefficient E			-1.37860e-06
Temperature range, min.			213.87
Temperature range, max.			361.00
Cp,liquid	153.60	J/mol×K	213.87	Calculated Property
Cp,liquid	160.20	J/mol×K	230.22	Calculated Property
Cp,liquid	166.85	J/mol×K	246.57	Calculated Property
Cp,liquid	173.57	J/mol×K	262.91	Calculated Property
Cp,liquid	180.38	J/mol×K	279.26	Calculated Property
Cp,liquid	187.29	J/mol×K	295.61	Calculated Property
Cp,liquid	194.29	J/mol×K	311.96	Calculated Property
Cp,liquid	201.41	J/mol×K	328.30	Calculated Property
Cp,liquid	208.63	J/mol×K	344.65	Calculated Property
Cp,liquid	215.96	J/mol×K	361.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
η	[0.0023312; 0.0002137]	Pa×s	[203.36; 400.00]	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			-7.81320e+00
Coefficient B			9.01760e+02
Coefficient C			-5.13730e-01
Coefficient D			1.16070e-06
Coefficient E			2.00000e+00
Temperature range, min.			203.36
Temperature range, max.			400.00
η	0.0023312	Pa×s	203.36	Calculated Property
η	0.0014545	Pa×s	225.21	Calculated Property
η	0.0009851	Pa×s	247.06	Calculated Property
η	0.0007103	Pa×s	268.91	Calculated Property
η	0.0005379	Pa×s	290.76	Calculated Property
η	0.0004237	Pa×s	312.60	Calculated Property
η	0.0003446	Pa×s	334.45	Calculated Property
η	0.0002877	Pa×s	356.30	Calculated Property
η	0.0002456	Pa×s	378.15	Calculated Property
η	0.0002137	Pa×s	400.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
ΔvapH	[39.22; 0.00]	kJ/mol	[203.36; 547.00]	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			6.47530e+01
Coefficient B			1.83500e+00
Coefficient C			-2.42210e+00
Coefficient D			1.00970e+00
Coefficient E			8.30520e-02
Critical temperature, Tc (K)			5.47000e+02
Temperature range, min.			203.36
Temperature range, max.			547.00
ΔvapH	39.22	kJ/mol	203.36	Calculated Property
ΔvapH	36.81	kJ/mol	241.54	Calculated Property
ΔvapH	34.69	kJ/mol	279.72	Calculated Property
ΔvapH	32.71	kJ/mol	317.91	Calculated Property
ΔvapH	30.70	kJ/mol	356.09	Calculated Property
ΔvapH	28.44	kJ/mol	394.27	Calculated Property
ΔvapH	25.65	kJ/mol	432.45	Calculated Property
ΔvapH	21.87	kJ/mol	470.64	Calculated Property
ΔvapH	16.11	kJ/mol	508.82	Calculated Property
ΔvapH	0.00	kJ/mol	547.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.64]	kPa	[261.51; 385.78]	The Yaws Handbook of Vapor Pressure
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			1.42167e+01
Coefficient B			-3.06828e+03
Coefficient C			-4.12340e+01
Temperature range, min.			261.51
Temperature range, max.			385.78
Pvap	1.33	kPa	261.51	Calculated Property
Pvap	3.03	kPa	275.32	Calculated Property
Pvap	6.29	kPa	289.13	Calculated Property
Pvap	12.09	kPa	302.93	Calculated Property
Pvap	21.76	kPa	316.74	Calculated Property
Pvap	37.02	kPa	330.55	Calculated Property
Pvap	60.01	kPa	344.36	Calculated Property
Pvap	93.27	kPa	358.16	Calculated Property
Pvap	139.72	kPa	371.97	Calculated Property
Pvap	202.64	kPa	385.78	Calculated Property
Pvap	[9.51e-03; 2969.85]	kPa	[203.36; 547.00]	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			7.37866e+01
Coefficient B			-6.44477e+03
Coefficient C			-8.84092e+00
Coefficient D			5.77792e-06
Coefficient E			2.00000e+00
Temperature range, min.			203.36
Temperature range, max.			547.00
Pvap	9.51e-03	kPa	203.36	Calculated Property
Pvap	0.34	kPa	241.54	Calculated Property
Pvap	4.02	kPa	279.72	Calculated Property
Pvap	23.54	kPa	317.91	Calculated Property
Pvap	88.10	kPa	356.09	Calculated Property
Pvap	243.77	kPa	394.27	Calculated Property
Pvap	547.10	kPa	432.45	Calculated Property
Pvap	1058.80	kPa	470.64	Calculated Property
Pvap	1842.58	kPa	508.82	Calculated Property
Pvap	2969.85	kPa	547.00	Calculated Property
Pvap	[9.19e-03; 3463.34]	kPa	[203.36; 547.00]	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			8.87017e+01
Coefficient B			-6.92875e+03
Coefficient C			-1.12381e+01
Coefficient D			9.90988e-06
Coefficient E			0.00000e+00
Temperature range, min.			203.36
Temperature range, max.			547.00
Pvap	9.19e-03	kPa	203.36	Calculated Property
Pvap	0.34	kPa	241.54	Calculated Property
Pvap	4.03	kPa	279.72	Calculated Property
Pvap	23.50	kPa	317.91	Calculated Property
Pvap	87.75	kPa	356.09	Calculated Property
Pvap	244.22	kPa	394.27	Calculated Property
Pvap	557.63	kPa	432.45	Calculated Property
Pvap	1112.54	kPa	470.64	Calculated Property
Pvap	2024.61	kPa	508.82	Calculated Property
Pvap	3463.34	kPa	547.00	Calculated Property
Pvap	[6.42; 104.01]	kPa	[288.70; 361.89]	NIST
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			1.37112e+01
Coefficient B			-2.82425e+03
Coefficient C			-5.03930e+01
Reference			Forziati, Norris, et al., 1949, 2
Comment			Coefficents calculated by NIST from author's data.
Temperature range, min.			288.70
Temperature range, max.			361.89
Pvap	6.42	kPa	288.70	Calculated Property
Pvap	9.50	kPa	296.83	Calculated Property
Pvap	13.70	kPa	304.96	Calculated Property
Pvap	19.31	kPa	313.10	Calculated Property
Pvap	26.66	kPa	321.23	Calculated Property
Pvap	36.14	kPa	329.36	Calculated Property
Pvap	48.14	kPa	337.49	Calculated Property
Pvap	63.12	kPa	345.63	Calculated Property
Pvap	81.57	kPa	353.76	Calculated Property
Pvap	104.01	kPa	361.89	Calculated Property
Pvap	[6.42; 104.01]	kPa	[288.70; 361.89]	NIST
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			1.37112e+01
Coefficient B			-2.82425e+03
Coefficient C			-5.03930e+01
Reference			Forziati, Norris, et al., 1949
Comment			Coefficents calculated by NIST from author's data.
Temperature range, min.			288.70
Temperature range, max.			361.89
Pvap	6.42	kPa	288.70	Calculated Property
Pvap	9.50	kPa	296.83	Calculated Property
Pvap	13.70	kPa	304.96	Calculated Property
Pvap	19.31	kPa	313.10	Calculated Property
Pvap	26.66	kPa	321.23	Calculated Property
Pvap	36.14	kPa	329.36	Calculated Property
Pvap	48.14	kPa	337.49	Calculated Property
Pvap	63.12	kPa	345.63	Calculated Property
Pvap	81.57	kPa	353.76	Calculated Property
Pvap	104.01	kPa	361.89	Calculated Property

Property	Value	Unit	Temperature (K)	Source
ρl	[831.60; 272.74]	kg/m3	[203.36; 547.00]	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			7.56337e+01
Coefficient B			2.77310e-01
Coefficient C			5.47000e+02
Coefficient D			3.01610e-01
Temperature range, min.			203.36
Temperature range, max.			547.00
ρl	831.60	kg/m3	203.36	Calculated Property
ρl	799.86	kg/m3	241.54	Calculated Property
ρl	766.60	kg/m3	279.72	Calculated Property
ρl	731.44	kg/m3	317.91	Calculated Property
ρl	693.84	kg/m3	356.09	Calculated Property
ρl	652.93	kg/m3	394.27	Calculated Property
ρl	607.23	kg/m3	432.45	Calculated Property
ρl	553.79	kg/m3	470.64	Calculated Property
ρl	484.52	kg/m3	508.82	Calculated Property
ρl	272.74	kg/m3	547.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
γ	[0.03; 0.01]	N/m	[203.15; 360.65]	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			5.15320e-02
Coefficient B			-1.01600e-04
Coefficient C			0.00000e+00
Coefficient D			0.00000e+00
Coefficient E			0.00000e+00
Temperature range, min.			203.15
Temperature range, max.			360.65
γ	0.03	N/m	203.15	Calculated Property
γ	0.03	N/m	220.65	Calculated Property
γ	0.03	N/m	238.15	Calculated Property
γ	0.03	N/m	255.65	Calculated Property
γ	0.02	N/m	273.15	Calculated Property
γ	0.02	N/m	290.65	Calculated Property
γ	0.02	N/m	308.15	Calculated Property
γ	0.02	N/m	325.65	Calculated Property
γ	0.02	N/m	343.15	Calculated Property
γ	0.01	N/m	360.65	Calculated Property
γ	[0.03; 5.79e-06]	N/m	[203.36; 544.94]	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			-7.44710e-03
Coefficient B			1.12420e+02
Coefficient C			-4.12800e+00
Coefficient D			3.64190e-03
Coefficient E			-9.97470e-06
Comment			Range stopped where the equation turns negative; ChemSep gives it to 547 K.
Temperature range, min.			203.36
Temperature range, max.			544.94
γ	0.03	N/m	203.36	Calculated Property
γ	0.03	N/m	241.31	Calculated Property
γ	0.02	N/m	279.27	Calculated Property
γ	0.02	N/m	317.22	Calculated Property
γ	0.02	N/m	355.17	Calculated Property
γ	0.01	N/m	393.13	Calculated Property
γ	0.01	N/m	431.08	Calculated Property
γ	0.01	N/m	469.03	Calculated Property
γ	0.00	N/m	506.99	Calculated Property
γ	5.79e-06	N/m	544.94	Calculated Property

Property	Value	Unit	Temperature (K)	Source
λgas	[0.00; 0.10]	W/m×K	[203.68; 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			2.55660e-03
Coefficient B			6.06380e-01
Coefficient C			1.65730e+02
Coefficient D			4.77660e+05
Temperature range, min.			203.68
Temperature range, max.			1000.00
λgas	0.00	W/m×K	203.68	Calculated Property
λgas	0.01	W/m×K	292.16	Calculated Property
λgas	0.02	W/m×K	380.64	Calculated Property
λgas	0.03	W/m×K	469.12	Calculated Property
λgas	0.04	W/m×K	557.60	Calculated Property
λgas	0.05	W/m×K	646.08	Calculated Property
λgas	0.07	W/m×K	734.56	Calculated Property
λgas	0.08	W/m×K	823.04	Calculated Property
λgas	0.09	W/m×K	911.52	Calculated Property
λgas	0.10	W/m×K	1000.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
λliquid	[0.14; 0.10]	W/m×K	[203.36; 361.00]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A + exp(B/T + C + D·T + E·T²) Y is λliquid in W/m×K, T in K
Coefficient A			-1.25480e-02
Coefficient B			-2.67290e+01
Coefficient C			-1.38110e+00
Coefficient D			-1.70460e-03
Coefficient E			-8.82130e-07
Temperature range, min.			203.36
Temperature range, max.			361.00
λliquid	0.14	W/m×K	203.36	Calculated Property
λliquid	0.13	W/m×K	220.88	Calculated Property
λliquid	0.13	W/m×K	238.39	Calculated Property
λliquid	0.13	W/m×K	255.91	Calculated Property
λliquid	0.12	W/m×K	273.42	Calculated Property
λliquid	0.12	W/m×K	290.94	Calculated Property
λliquid	0.11	W/m×K	308.45	Calculated Property
λliquid	0.11	W/m×K	325.97	Calculated Property
λliquid	0.10	W/m×K	343.48	Calculated Property
λliquid	0.10	W/m×K	361.00	Calculated Property

Similar Compounds

Find more compounds similar to Cyclopentane, 1,1-dimethyl-.

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.
• 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.
• 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

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