Chemical Properties of Cyclopentane, ethyl- (CAS 1640-89-7)

InChI

InChI=1S/C7H14/c1-2-7-5-3-4-6-7/h7H,2-6H2,1H3

InChI Key

IFTRQJLVEBNKJK-UHFFFAOYSA-N

Formula

C7H14

SMILES

CCC1CCCC1

Molecular Weight¹

98.19

CAS

1640-89-7

Other Names

• Ethylcyclopentane

• 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).
• 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).
• NFPA Fire : NFPA Fire Rating.
• NFPA Health : NFPA Health Rating.
• P_c : Critical 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 : Polar retention indices.
• 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).
• T_fus : Normal melting (fusion) point (K).
• V_c : Critical Volume (m³/kmol).
• Z_c : Critical Compressibility.
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ω	0.2710		KDB
AP	309.850	K	KDB
ΔcH°liquid	[-4591.94; -4589.60]	kJ/mol
ΔcH°liquid	-4591.94 ± 0.92	kJ/mol	NIST
ΔcH°liquid	-4589.60 ± 1.50	kJ/mol	NIST
ΔfG°	44.59	kJ/mol	KDB
Δc,grossH	4591.94	kJ/mol	KDB
Δc,netH	4283.872	kJ/mol	KDB
ΔfH°gas	[-129.40; -127.10]	kJ/mol
ΔfH°gas	-127.20	kJ/mol	KDB
ΔfH°gas	-127.10 ± 1.00	kJ/mol	NIST
ΔfH°gas	-129.40	kJ/mol	NIST
ΔfH°liquid	[-165.80; -163.50]	kJ/mol
ΔfH°liquid	-163.50 ± 1.00	kJ/mol	NIST
ΔfH°liquid	-165.80 ± 1.60	kJ/mol	NIST
ΔfusH°	7.82	kJ/mol	Joback Calculated Property
ΔvapH°	[36.40; 36.50]	kJ/mol
ΔvapH°	36.47	kJ/mol	NIST
ΔvapH°	36.50	kJ/mol	NIST
ΔvapH°	36.40	kJ/mol	NIST
IE	[9.60; 10.12]	eV
IE	9.60	eV	NIST
IE	10.12 ± 0.02	eV	NIST
log10WS	-2.41		Crippen Calculated Property
logPoct/wat	2.587		Crippen Calculated Property
McVol	98.630	ml/mol	McGowan Calculated Property
NFPA Fire	3		KDB
NFPA Health	1		KDB
Pc	[3397.02; 3400.00]	kPa
Pc	3400.00	kPa	KDB
Pc	3400.00 ± 40.00	kPa	NIST
Pc	3397.02 ± 5.06	kPa	NIST
ρc	[262.16; 262.16]	kg/m3
ρc	262.16 ± 3.93	kg/m3	NIST
ρc	262.16 ± 1.96	kg/m3	NIST
Inp	[711.00; 753.00]
Inp	722.00		NIST
Inp	741.50		NIST
Inp	729.00		NIST
Inp	734.30		NIST
Inp	734.50		NIST
Inp	734.80		NIST
Inp	734.80		NIST
Inp	733.80		NIST
Inp	737.50		NIST
Inp	734.00		NIST
Inp	735.00		NIST
Inp	729.00		NIST
Inp	733.00		NIST
Inp	737.00		NIST
Inp	733.10		NIST
Inp	737.00		NIST
Inp	733.00		NIST
Inp	735.00		NIST
Inp	736.00		NIST
Inp	729.90		NIST
Inp	731.90		NIST
Inp	734.10		NIST
Inp	735.60		NIST
Inp	743.40		NIST
Inp	727.00		NIST
Inp	729.00		NIST
Inp	731.00		NIST
Inp	733.00		NIST
Inp	735.00		NIST
Inp	737.00		NIST
Inp	734.30		NIST
Inp	734.80		NIST
Inp	Outlier 750.00		NIST
Inp	739.00		NIST
Inp	732.00		NIST
Inp	732.00		NIST
Inp	732.00		NIST
Inp	741.30		NIST
Inp	741.50		NIST
Inp	737.10		NIST
Inp	737.90		NIST
Inp	743.00		NIST
Inp	733.10		NIST
Inp	738.10		NIST
Inp	738.10		NIST
Inp	744.00		NIST
Inp	736.00		NIST
Inp	740.00		NIST
Inp	734.00		NIST
Inp	738.00		NIST
Inp	Outlier 748.00		NIST
Inp	743.00		NIST
Inp	734.00		NIST
Inp	737.00		NIST
Inp	738.00		NIST
Inp	740.00		NIST
Inp	742.00		NIST
Inp	734.40		NIST
Inp	734.00		NIST
Inp	737.00		NIST
Inp	737.00		NIST
Inp	737.00		NIST
Inp	Outlier 749.00		NIST
Inp	729.00		NIST
Inp	734.00		NIST
Inp	738.00		NIST
Inp	741.00		NIST
Inp	738.00		NIST
Inp	738.00		NIST
Inp	738.00		NIST
Inp	Outlier 749.00		NIST
Inp	733.00		NIST
Inp	725.00		NIST
Inp	725.00		NIST
Inp	745.00		NIST
Inp	728.70		NIST
Inp	732.00		NIST
Inp	736.00		NIST
Inp	731.00		NIST
Inp	732.00		NIST
Inp	725.65		NIST
Inp	726.06		NIST
Inp	724.50		NIST
Inp	733.30		NIST
Inp	729.70		NIST
Inp	726.90		NIST
Inp	726.98		NIST
Inp	727.03		NIST
Inp	727.17		NIST
Inp	727.00		NIST
Inp	732.40		NIST
Inp	729.10		NIST
Inp	728.50		NIST
Inp	725.00		NIST
Inp	734.00		NIST
Inp	730.00		NIST
Inp	734.00		NIST
Inp	732.00		NIST
Inp	735.00		NIST
Inp	Outlier 711.00		NIST
Inp	730.00		NIST
Inp	731.00		NIST
Inp	730.00		NIST
Inp	727.00		NIST
Inp	730.00		NIST
Inp	727.00		NIST
Inp	729.00		NIST
Inp	Outlier 749.00		NIST
Inp	734.00		NIST
Inp	736.00		NIST
Inp	Outlier 751.00		NIST
Inp	734.00		NIST
Inp	734.00		NIST
Inp	728.00		NIST
Inp	728.00		NIST
Inp	736.00		NIST
Inp	739.00		NIST
Inp	728.00		NIST
Inp	726.00		NIST
Inp	722.00		NIST
Inp	734.00		NIST
Inp	725.00		NIST
Inp	733.00		NIST
Inp	739.00		NIST
Inp	Outlier 753.00		NIST
Inp	722.00		NIST
Inp	734.80		NIST
Inp	735.00		NIST
Inp	737.00		NIST
Inp	731.90		NIST
Inp	729.00		NIST
Inp	734.30		NIST
Inp	732.00		NIST
Inp	737.90		NIST
Inp	744.00		NIST
Inp	Outlier 748.00		NIST
Inp	740.00		NIST
Inp	738.00		NIST
Inp	Outlier 749.00		NIST
I	[773.00; 817.00]
I	817.00		NIST
I	801.00		NIST
I	809.00		NIST
I	817.00		NIST
I	773.00		NIST
S°gas	378.32	J/mol×K	NIST
S°liquid	279.91	J/mol×K	NIST
Tboil	376.60	K	KDB
Tc	[569.45; 569.50]	K
Tc	569.50	K	KDB
Tc	569.50 ± 0.50	K	NIST
Tc	569.50	K	NIST
Tc	569.45 ± 0.05	K	NIST
Tfus	134.71	K	KDB
Vc	[0.375; 0.375]	m3/kmol
Vc	0.375	m3/kmol	KDB
Vc	0.375	m3/kmol	NIST
Zc	0.2692650		KDB

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[173.92; 255.21]	J/mol×K	[374.84; 568.84]
Cp,gas	173.92	J/mol×K	374.84	Joback Calculated Property
Cp,gas	189.22	J/mol×K	407.17	Joback Calculated Property
Cp,gas	203.78	J/mol×K	439.51	Joback Calculated Property
Cp,gas	217.64	J/mol×K	471.84	Joback Calculated Property
Cp,gas	230.81	J/mol×K	504.17	Joback Calculated Property
Cp,gas	243.33	J/mol×K	536.50	Joback Calculated Property
Cp,gas	255.21	J/mol×K	568.84	Joback Calculated Property
Cp,liquid	187.61	J/mol×K	301.83	NIST
η	[0.0002960; 0.0038089]	Pa×s	[179.55; 374.84]
η	0.0038089	Pa×s	179.55	Joback Calculated Property
η	0.0017947	Pa×s	212.10	Joback Calculated Property
η	0.0010331	Pa×s	244.65	Joback Calculated Property
η	0.0006770	Pa×s	277.19	Joback Calculated Property
η	0.0004849	Pa×s	309.74	Joback Calculated Property
η	0.0003701	Pa×s	342.29	Joback Calculated Property
η	0.0002960	Pa×s	374.84	Joback Calculated Property
ΔfusH	[6.86; 6.87]	kJ/mol	[134.70; 134.70]
ΔfusH	6.86	kJ/mol	134.70	NIST
ΔfusH	6.87	kJ/mol	134.70	NIST
ΔvapH	[31.90; 35.70]	kJ/mol	[313.00; 534.00]
ΔvapH	35.60 ± 0.10	kJ/mol	313.00	NIST
ΔvapH	34.80 ± 0.10	kJ/mol	328.00	NIST
ΔvapH	35.70	kJ/mol	339.50	NIST
ΔvapH	33.90 ± 0.10	kJ/mol	343.00	NIST
ΔvapH	35.50	kJ/mol	347.50	NIST
ΔvapH	33.00 ± 0.10	kJ/mol	358.00	NIST
ΔvapH	32.50 ± 0.10	kJ/mol	368.00	NIST
ΔvapH	32.28	kJ/mol	376.60	KDB
ΔvapH	31.96	kJ/mol	376.60	NIST
ΔvapH	32.90	kJ/mol	446.50	NIST
ΔvapH	31.90	kJ/mol	534.00	NIST
n0	1.41730		298.15	KDB
ρl	771.00	kg/m3	289.00	KDB
γ	0.02	N/m	293.20	KDB

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.67]	kPa	[271.79; 402.74]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.43149e+01
Coefficient B			-3.29180e+03
Coefficient C			-3.71200e+01
Temperature range, min.			271.79
Temperature range, max.			402.74
Pvap	1.33	kPa	271.79	Calculated Property
Pvap	3.02	kPa	286.34	Calculated Property
Pvap	6.27	kPa	300.89	Calculated Property
Pvap	12.03	kPa	315.44	Calculated Property
Pvap	21.65	kPa	329.99	Calculated Property
Pvap	36.86	kPa	344.54	Calculated Property
Pvap	59.80	kPa	359.09	Calculated Property
Pvap	93.04	kPa	373.64	Calculated Property
Pvap	139.55	kPa	388.19	Calculated Property
Pvap	202.67	kPa	402.74	Calculated Property
Pvap	[3.71e-09; 3377.64]	kPa	[134.71; 569.52]	KDB Vap...
Equation			ln(Pvp) = A + B/T + C*ln(T) + D*T^2
Coefficient A			8.15619e+01
Coefficient B			-7.00763e+03
Coefficient C			-1.00117e+01
Coefficient D			7.36714e-06
Temperature range, min.			134.71
Temperature range, max.			569.52
Pvap	3.71e-09	kPa	134.71	Calculated Property
Pvap	1.77e-04	kPa	183.02	Calculated Property
Pvap	0.06	kPa	231.33	Calculated Property
Pvap	1.97	kPa	279.65	Calculated Property
Pvap	19.89	kPa	327.96	Calculated Property
Pvap	100.35	kPa	376.27	Calculated Property
Pvap	331.45	kPa	424.58	Calculated Property
Pvap	837.27	kPa	472.90	Calculated Property
Pvap	1778.76	kPa	521.21	Calculated Property
Pvap	3377.64	kPa	569.52	Calculated Property

Similar Compounds

Find more compounds similar to Cyclopentane, ethyl-.

Sources

• KDB Vapor Pressure Data
• Crippen Method
• Crippen Method
• Joback Method
• KDB
• McGowan Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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