Chemical Properties of 2-Pentene, 3-ethyl-2-methyl- (CAS 19780-67-7)

InChI

InChI=1S/C8H16/c1-5-8(6-2)7(3)4/h5-6H2,1-4H3

InChI Key

FQYUGAXHZSQHMU-UHFFFAOYSA-N

Formula

C8H16

SMILES

CCC(CC)=C(C)C

Molecular Weight¹

112.21

CAS

19780-67-7

Other Names

• (C2H5)2C=C(CH3)2
• 2-Methyl-3-ethyl-2-pentene
• 3-ETHYL-2-METHYL-2-PENTENE
• 3-Ethyl-2-methylpent-2-ene

• C_p,gas : Ideal gas heat capacity (J/mol×K).
• Δ_fG° : Standard Gibbs free energy of formation (kJ/mol).
• Δ_fH°_gas : 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).
• 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.
• 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
ΔfG°	79.60	kJ/mol	Joback Calculated Property
ΔfH°gas	-110.81	kJ/mol	Joback Calculated Property
ΔfusH°	14.06	kJ/mol	Joback Calculated Property
ΔvapH°	39.30	kJ/mol	NIST
IE	8.17 ± 0.00	eV	NIST
log10WS	-3.02		Crippen Calculated Property
logPoct/wat	3.143		Crippen Calculated Property
McVol	119.280	ml/mol	McGowan Calculated Property
Pc	2701.41	kPa	Joback Calculated Property
Inp	[778.00; 791.80]
Inp	791.80		NIST
Inp	778.00		NIST
Inp	778.00		NIST
Inp	780.00		NIST
Inp	778.00		NIST
Inp	778.00		NIST
Inp	791.80		NIST
Tboil	386.36	K	Joback Calculated Property
Tc	565.14	K	Joback Calculated Property
Tfus	146.92	K	Joback Calculated Property
Vc	0.466	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[218.01; 289.68]	J/mol×K	[386.36; 565.14]
Cp,gas	218.01	J/mol×K	386.36	Joback Calculated Property
Cp,gas	231.36	J/mol×K	416.16	Joback Calculated Property
Cp,gas	244.11	J/mol×K	445.95	Joback Calculated Property
Cp,gas	256.30	J/mol×K	475.75	Joback Calculated Property
Cp,gas	267.94	J/mol×K	505.55	Joback Calculated Property
Cp,gas	279.06	J/mol×K	535.34	Joback Calculated Property
Cp,gas	289.68	J/mol×K	565.14	Joback Calculated Property

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.64]	kPa	[285.90; 421.03]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.35553e+01
Coefficient B			-2.94201e+03
Coefficient C			-6.41600e+01
Temperature range, min.			285.90
Temperature range, max.			421.03
Pvap	1.33	kPa	285.90	Calculated Property
Pvap	3.09	kPa	300.91	Calculated Property
Pvap	6.49	kPa	315.93	Calculated Property
Pvap	12.52	kPa	330.94	Calculated Property
Pvap	22.54	kPa	345.96	Calculated Property
Pvap	38.22	kPa	360.97	Calculated Property
Pvap	61.60	kPa	375.99	Calculated Property
Pvap	95.01	kPa	391.00	Calculated Property
Pvap	141.08	kPa	406.02	Calculated Property
Pvap	202.64	kPa	421.03	Calculated Property

Similar Compounds

Find more compounds similar to 2-Pentene, 3-ethyl-2-methyl-.

Sources

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

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