Chemical Properties of 1-Ethylcyclopentene (CAS 2146-38-5)

InChI

InChI=1S/C7H12/c1-2-7-5-3-4-6-7/h5H,2-4,6H2,1H3

InChI Key

QYYQTLLGVAPKPN-UHFFFAOYSA-N

Formula

C7H12

SMILES

CCC1=CCCC1

Molecular Weight¹

96.17

CAS

2146-38-5

Other Names

• 1-ETHYL-1-CYCLOPENTENE
• 1-Ethylcyclopentene-1
• Cyclopentene, 1-ethyl-
• ETHYLCYCLOPENTENE

• 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_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_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_vap : Vapor pressure (kPa).
• I_np : Non-polar retention indices.
• I : Polar retention indices.
• 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).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ΔcH°liquid	-4411.27 ± 0.79	kJ/mol	NIST
ΔfG°	72.65	kJ/mol	Joback Calculated Property
ΔfH°gas	[-25.00; -19.90]	kJ/mol
ΔfH°gas	-25.00	kJ/mol	NIST
ΔfH°gas	-19.90 ± 0.90	kJ/mol	NIST
ΔfH°liquid	-58.37 ± 0.88	kJ/mol	NIST
ΔfusH°	7.58	kJ/mol	Joback Calculated Property
ΔvapH°	[38.50; 38.50]	kJ/mol
ΔvapH°	38.50 ± 0.30	kJ/mol	NIST
ΔvapH°	38.50 ± 0.30	kJ/mol	NIST
IE	8.53 ± 0.01	eV	NIST
log10WS	-2.50		Crippen Calculated Property
logPoct/wat	2.507		Crippen Calculated Property
McVol	94.330	ml/mol	McGowan Calculated Property
Pc	3646.53	kPa	Joback Calculated Property
Inp	[744.00; 779.00]
Inp	751.00		NIST
Inp	751.00		NIST
Inp	746.10		NIST
Inp	747.40		NIST
Inp	752.00		NIST
Inp	744.00		NIST
Inp	744.00		NIST
Inp	747.00		NIST
Inp	748.00		NIST
Inp	748.00		NIST
Inp	749.00		NIST
Inp	749.00		NIST
Inp	751.00		NIST
Inp	753.00		NIST
Inp	752.00		NIST
Inp	750.00		NIST
Inp	Outlier 775.00		NIST
Inp	Outlier 779.00		NIST
Inp	747.40		NIST
Inp	748.40		NIST
Inp	750.90		NIST
Inp	747.00		NIST
Inp	748.00		NIST
Inp	751.00		NIST
Inp	744.00		NIST
Inp	747.00		NIST
Inp	749.00		NIST
Inp	751.00		NIST
Inp	749.00		NIST
Inp	750.00		NIST
Inp	753.00		NIST
Inp	751.00		NIST
Inp	754.00		NIST
Inp	752.00		NIST
Inp	755.00		NIST
Inp	744.00		NIST
Inp	744.00		NIST
I	[880.00; 891.10]
I	891.00		NIST
I	880.00		NIST
I	886.00		NIST
I	891.00		NIST
I	891.10		NIST
I	880.50		NIST
I	885.90		NIST
I	891.10		NIST
I	880.50		NIST
I	885.90		NIST
I	891.00		NIST
I	880.50		NIST
Tboil	[376.15; 382.00]	K
Tboil	379.50	K	NIST
Tboil	380.00 ± 1.00	K	NIST
Tboil	379.70 ± 0.40	K	NIST
Tboil	379.70 ± 0.50	K	NIST
Tboil	379.50 ± 0.30	K	NIST
Tboil	378.00 ± 2.00	K	NIST
Tboil	380.50 ± 1.00	K	NIST
Tboil	379.70 ± 3.00	K	NIST
Tboil	380.00 ± 3.00	K	NIST
Tboil	377.00 ± 3.00	K	NIST
Tboil	377.00 ± 3.00	K	NIST
Tboil	379.48 ± 0.30	K	NIST
Tboil	379.35 ± 0.30	K	NIST
Tboil	382.00 ± 4.00	K	NIST
Tboil	Outlier 376.15 ± 0.50	K	NIST
Tboil	379.90 ± 2.00	K	NIST
Tboil	381.00 ± 3.00	K	NIST
Tc	582.00	K	Joback Calculated Property
Tfus	[149.80; 154.35]	K
Tfus	149.80 ± 0.50	K	NIST
Tfus	154.35 ± 0.30	K	NIST
Vc	0.355	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[164.17; 233.94]	J/mol×K	[383.65; 582.00]
Cp,gas	164.17	J/mol×K	383.65	Joback Calculated Property
Cp,gas	177.41	J/mol×K	416.71	Joback Calculated Property
Cp,gas	189.97	J/mol×K	449.77	Joback Calculated Property
Cp,gas	201.88	J/mol×K	482.82	Joback Calculated Property
Cp,gas	213.16	J/mol×K	515.88	Joback Calculated Property
Cp,gas	223.84	J/mol×K	548.94	Joback Calculated Property
Cp,gas	233.94	J/mol×K	582.00	Joback Calculated Property
Cp,liquid	188.30	J/mol×K	298.15	NIST
η	[0.0002801; 0.0031534]	Pa×s	[197.07; 383.65]
η	0.0031534	Pa×s	197.07	Joback Calculated Property
η	0.0015999	Pa×s	228.17	Joback Calculated Property
η	0.0009552	Pa×s	259.26	Joback Calculated Property
η	0.0006369	Pa×s	290.36	Joback Calculated Property
η	0.0004593	Pa×s	321.46	Joback Calculated Property
η	0.0003509	Pa×s	352.55	Joback Calculated Property
η	0.0002801	Pa×s	383.65	Joback Calculated Property
ΔvapH	36.50	kJ/mol	363.00	NIST

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.68]	kPa	[275.85; 404.91]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.41400e+01
Coefficient B			-3.14169e+03
Coefficient C			-4.90480e+01
Temperature range, min.			275.85
Temperature range, max.			404.91
Pvap	1.33	kPa	275.85	Calculated Property
Pvap	3.04	kPa	290.19	Calculated Property
Pvap	6.31	kPa	304.53	Calculated Property
Pvap	12.14	kPa	318.87	Calculated Property
Pvap	21.85	kPa	333.21	Calculated Property
Pvap	37.16	kPa	347.55	Calculated Property
Pvap	60.20	kPa	361.89	Calculated Property
Pvap	93.48	kPa	376.23	Calculated Property
Pvap	139.90	kPa	390.57	Calculated Property
Pvap	202.68	kPa	404.91	Calculated Property

Similar Compounds

Find more compounds similar to 1-Ethylcyclopentene.

Sources

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

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