Chemical Properties of 2-Pentene, 2,4-dimethyl- (CAS 625-65-0)

InChI

InChI=1S/C7H14/c1-6(2)5-7(3)4/h5-6H,1-4H3

InChI Key

VVCFYASOGFVJFN-UHFFFAOYSA-N

Formula

C7H14

SMILES

CC(C)=CC(C)C

Molecular Weight¹

98.19

CAS

625-65-0

Other Names

• (CH3)2CHCH=C(CH3)2
• 2,4-Dimethyl-2-pentene
• 2,4-dimethylpent-2-ene

• PAff : Proton affinity (kJ/mol).
• BasG : Gas basicity (kJ/mol).
• Δ_cH°_liquid : Standard liquid enthalpy of combustion (kJ/mol).
• 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).
• Δ_vapH : Enthalpy of vaporization at a given temperature (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.
• 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
PAff	812.00	kJ/mol	NIST
BasG	783.10	kJ/mol	NIST
ΔcH°liquid	-4632.27 ± 0.84	kJ/mol	NIST
ΔfG°	77.29	kJ/mol	Joback Calculated Property
ΔfH°gas	-85.66	kJ/mol	Joback Calculated Property
ΔfusH°	9.25	kJ/mol	Joback Calculated Property
ΔvapH°	[34.30; 34.50]	kJ/mol
ΔvapH°	34.50 ± 1.50	kJ/mol	NIST
ΔvapH°	34.30	kJ/mol	NIST
ΔvapH°	34.30	kJ/mol	NIST
log10WS	-2.36		Crippen Calculated Property
logPoct/wat	2.609		Crippen Calculated Property
McVol	105.190	ml/mol	McGowan Calculated Property
Pc	3002.44	kPa	Joback Calculated Property
Inp	[640.00; 656.00]
Inp	654.90		NIST
Inp	641.20		NIST
Inp	649.10		NIST
Inp	648.40		NIST
Inp	640.70		NIST
Inp	640.30		NIST
Inp	654.00		NIST
Inp	654.00		NIST
Inp	640.70		NIST
Inp	640.00		NIST
Inp	641.00		NIST
Inp	641.00		NIST
Inp	640.00		NIST
Inp	643.00		NIST
Inp	641.00		NIST
Inp	641.00		NIST
Inp	641.00		NIST
Inp	641.00		NIST
Inp	641.00		NIST
Inp	641.00		NIST
Inp	655.50		NIST
Inp	656.00		NIST
Inp	641.00		NIST
Inp	640.00		NIST
Inp	641.00		NIST
Inp	655.00		NIST
Inp	650.00		NIST
Inp	649.00		NIST
Inp	650.00		NIST
Inp	655.00		NIST
Inp	641.00		NIST
Inp	641.00		NIST
Inp	655.50		NIST
Tboil	363.16	K	Joback Calculated Property
Tc	543.24	K	Joback Calculated Property
Tfus	[145.41; 145.85]	K
Tfus	145.41 ± 0.03	K	NIST
Tfus	145.42 ± 0.02	K	NIST
Tfus	145.45 ± 0.01	K	NIST
Tfus	145.85 ± 0.05	K	NIST
Tfus	145.45 ± 0.02	K	NIST
Vc	0.403	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[180.18; 246.01]	J/mol×K	[363.16; 543.24]
Cp,gas	180.18	J/mol×K	363.16	Joback Calculated Property
Cp,gas	192.45	J/mol×K	393.17	Joback Calculated Property
Cp,gas	204.18	J/mol×K	423.19	Joback Calculated Property
Cp,gas	215.38	J/mol×K	453.20	Joback Calculated Property
Cp,gas	226.07	J/mol×K	483.22	Joback Calculated Property
Cp,gas	236.27	J/mol×K	513.23	Joback Calculated Property
Cp,gas	246.01	J/mol×K	543.24	Joback Calculated Property
ΔvapH	[34.20; 35.20]	kJ/mol	[286.50; 324.50]
ΔvapH	35.20 ± 1.50	kJ/mol	286.50	NIST
ΔvapH	34.50	kJ/mol	324.50	NIST
ΔvapH	34.20	kJ/mol	324.50	NIST

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.68]	kPa	[260.01; 381.07]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.37580e+01
Coefficient B			-2.74151e+03
Coefficient C			-5.64900e+01
Temperature range, min.			260.01
Temperature range, max.			381.07
Pvap	1.33	kPa	260.01	Calculated Property
Pvap	3.07	kPa	273.46	Calculated Property
Pvap	6.42	kPa	286.91	Calculated Property
Pvap	12.38	kPa	300.36	Calculated Property
Pvap	22.29	kPa	313.81	Calculated Property
Pvap	37.84	kPa	327.27	Calculated Property
Pvap	61.10	kPa	340.72	Calculated Property
Pvap	94.47	kPa	354.17	Calculated Property
Pvap	140.67	kPa	367.62	Calculated Property
Pvap	202.68	kPa	381.07	Calculated Property
Pvap	[1.36; 197.97]	kPa	[260.15; 380.15]	KDB Vap...
Equation			ln(Pvp) = A + B/T + C*ln(T) + D*T^2
Coefficient A			1.01167e+02
Coefficient B			-7.43140e+03
Coefficient C			-1.31513e+01
Coefficient D			1.24302e-05
Temperature range, min.			260.15
Temperature range, max.			380.15
Pvap	1.36	kPa	260.15	Calculated Property
Pvap	3.09	kPa	273.48	Calculated Property
Pvap	6.41	kPa	286.82	Calculated Property
Pvap	12.29	kPa	300.15	Calculated Property
Pvap	22.02	kPa	313.48	Calculated Property
Pvap	37.24	kPa	326.82	Calculated Property
Pvap	59.94	kPa	340.15	Calculated Property
Pvap	92.45	kPa	353.48	Calculated Property
Pvap	137.45	kPa	366.82	Calculated Property
Pvap	197.97	kPa	380.15	Calculated Property

Similar Compounds

Find more compounds similar to 2-Pentene, 2,4-dimethyl-.

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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