Chemical Properties of 2-Pentenoic acid, 2-methyl- (CAS 3142-72-1)

InChI

InChI=1S/C6H10O2/c1-3-4-5(2)6(7)8/h4H,3H2,1-2H3,(H,7,8)/b5-4+

InChI Key

JJYWRQLLQAKNAD-SNAWJCMRSA-N

Formula

C6H10O2

SMILES

CCC=C(C)C(=O)O

Molecular Weight¹

114.14

CAS

3142-72-1

Other Names

• 2-Methyl-2-pentenoic acid
• 2-methylpent-2-en-1-oic acid

• 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).
• 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
ΔfG°	-194.43	kJ/mol	Joback Calculated Property
ΔfH°gas	-324.55	kJ/mol	Joback Calculated Property
ΔfusH°	15.88	kJ/mol	Joback Calculated Property
ΔvapH°	52.41	kJ/mol	Joback Calculated Property
log10WS	-1.29		Crippen Calculated Property
logPoct/wat	1.427		Crippen Calculated Property
McVol	98.540	ml/mol	McGowan Calculated Property
Pc	3995.65	kPa	Joback Calculated Property
Inp	[974.00; 974.00]
Inp	974.00		NIST
Inp	974.00		NIST
I	[1909.00; 1909.00]
I	1909.00		NIST
I	1909.00		NIST
Tboil	486.77	K	Joback Calculated Property
Tc	669.02	K	Joback Calculated Property
Tfus	249.09	K	Joback Calculated Property
Vc	0.378	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[205.98; 251.22]	J/mol×K	[486.77; 669.02]
Cp,gas	205.98	J/mol×K	486.77	Joback Calculated Property
Cp,gas	214.52	J/mol×K	517.15	Joback Calculated Property
Cp,gas	222.63	J/mol×K	547.52	Joback Calculated Property
Cp,gas	230.34	J/mol×K	577.90	Joback Calculated Property
Cp,gas	237.66	J/mol×K	608.27	Joback Calculated Property
Cp,gas	244.62	J/mol×K	638.65	Joback Calculated Property
Cp,gas	251.22	J/mol×K	669.02	Joback Calculated Property

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.65]	kPa	[362.00; 521.71]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.43961e+01
Coefficient B			-4.07452e+03
Coefficient C			-7.32000e+01
Temperature range, min.			362.00
Temperature range, max.			521.71
Pvap	1.33	kPa	362.00	Calculated Property
Pvap	3.02	kPa	379.75	Calculated Property
Pvap	6.24	kPa	397.49	Calculated Property
Pvap	11.98	kPa	415.24	Calculated Property
Pvap	21.57	kPa	432.98	Calculated Property
Pvap	36.72	kPa	450.73	Calculated Property
Pvap	59.62	kPa	468.47	Calculated Property
Pvap	92.84	kPa	486.22	Calculated Property
Pvap	139.39	kPa	503.96	Calculated Property
Pvap	202.65	kPa	521.71	Calculated Property

Similar Compounds

Find more compounds similar to 2-Pentenoic acid, 2-methyl-.

Sources

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

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