Chemical Properties of 2-Hexene, (Z)- (CAS 7688-21-3)

InChI

InChI=1S/C6H12/c1-3-5-6-4-2/h3,5H,4,6H2,1-2H3/b5-3-

InChI Key

RYPKRALMXUUNKS-HYXAFXHYSA-N

Formula

C6H12

SMILES

CC=CCCC

Molecular Weight¹

84.16

CAS

7688-21-3

Other Names

• (Z)-2-C6H12
• (Z)-2-HEXENE
• (Z)-hex-2-ene
• 2-Hexene, cis-
• CIS-2-HEXENE

• ω : Acentric Factor.
• AP : Aniline Point (K).
• 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.
• P_c : Critical Pressure (kPa).
• P_vap : Vapor pressure (kPa).
• n₀ : Refractive Index.
• ρ_l : Liquid Density (kg/m³).
• I_np : Non-polar retention indices.
• I : Polar retention indices.
• Δ_fusS : Entropy of fusion at a given temperature (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).
• T_triple : Triple Point Temperature (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	0.2560		KDB
AP	299.150	K	KDB
ΔfG°	76.28	kJ/mol	KDB
Δc,grossH	3992.20	kJ/mol	KDB
Δc,netH	3728.111	kJ/mol	KDB
ΔfH°gas	[-53.30; -47.00]	kJ/mol
ΔfH°gas	-52.38	kJ/mol	KDB
ΔfH°gas	-47.00 ± 1.10	kJ/mol	NIST
ΔfH°gas	-47.50 ± 1.10	kJ/mol	NIST
ΔfH°gas	-49.40	kJ/mol	NIST
ΔfH°gas	-47.90 ± 1.00	kJ/mol	NIST
ΔfH°gas	-53.30 ± 1.20	kJ/mol	NIST
ΔfH°liquid	[-85.50; -79.20]	kJ/mol
ΔfH°liquid	-79.20 ± 1.00	kJ/mol	NIST
ΔfH°liquid	-79.70 ± 1.00	kJ/mol	NIST
ΔfH°liquid	-80.12 ± 0.84	kJ/mol	NIST
ΔfH°liquid	-85.50 ± 1.10	kJ/mol	NIST
ΔfusH°	11.50	kJ/mol	Joback Calculated Property
ΔvapH°	[31.50; 31.50]	kJ/mol
ΔvapH°	31.50	kJ/mol	NIST
ΔvapH°	31.50	kJ/mol	NIST
ΔvapH°	31.50	kJ/mol	NIST
IE	[8.97; 9.15]	eV
IE	8.97 ± 0.01	eV	NIST
IE	8.97 ± 0.01	eV	NIST
IE	9.15 ± 0.01	eV	NIST
log10WS	-2.19		Crippen Calculated Property
logPoct/wat	2.363		Crippen Calculated Property
McVol	91.100	ml/mol	McGowan Calculated Property
NFPA Fire	3		KDB
Pc	3280.00	kPa	KDB
Inp	[600.00; 620.00]
Inp	614.00		NIST
Inp	602.70		NIST
Inp	605.00		NIST
Inp	613.00		NIST
Inp	614.00		NIST
Inp	615.00		NIST
Inp	613.60		NIST
Inp	614.30		NIST
Inp	604.00		NIST
Inp	604.60		NIST
Inp	614.00		NIST
Inp	614.00		NIST
Inp	614.00		NIST
Inp	611.00		NIST
Inp	603.60		NIST
Inp	604.20		NIST
Inp	604.00		NIST
Inp	604.00		NIST
Inp	602.40		NIST
Inp	604.00		NIST
Inp	604.00		NIST
Inp	602.52		NIST
Inp	605.00		NIST
Inp	605.00		NIST
Inp	605.00		NIST
Inp	616.10		NIST
Inp	603.60		NIST
Inp	604.00		NIST
Inp	605.40		NIST
Inp	604.60		NIST
Inp	600.00		NIST
Inp	604.00		NIST
Inp	604.00		NIST
Inp	606.00		NIST
Inp	606.00		NIST
Inp	603.00		NIST
Inp	600.00		NIST
Inp	614.75		NIST
Inp	616.00		NIST
Inp	614.50		NIST
Inp	610.48		NIST
Inp	610.48		NIST
Inp	610.00		NIST
Inp	616.00		NIST
Inp	603.10		NIST
Inp	604.00		NIST
Inp	604.00		NIST
Inp	613.00		NIST
Inp	613.00		NIST
Inp	612.00		NIST
Inp	610.00		NIST
Inp	611.00		NIST
Inp	614.00		NIST
Inp	613.00		NIST
Inp	604.00		NIST
Inp	605.00		NIST
Inp	614.00		NIST
Inp	614.00		NIST
Inp	614.00		NIST
Inp	617.00		NIST
Inp	617.00		NIST
Inp	604.00		NIST
Inp	Outlier 620.00		NIST
Inp	600.00		NIST
Inp	613.00		NIST
Inp	614.00		NIST
Inp	615.00		NIST
Inp	604.20		NIST
Inp	604.00		NIST
Inp	616.10		NIST
Inp	600.00		NIST
Inp	603.00		NIST
Inp	614.50		NIST
Inp	603.10		NIST
Inp	616.00		NIST
I	[679.80; 680.50]
I	680.00		NIST
I	680.00		NIST
I	679.80		NIST
I	680.50		NIST
I	680.50		NIST
I	679.80		NIST
I	680.00		NIST
I	679.80		NIST
S°liquid	291.86	J/mol×K	NIST
Tboil	[341.85; 342.15]	K
Tboil	342.00	K	KDB
Tboil	342.00	K	NIST
Tboil	342.00 ± 0.40	K	NIST
Tboil	342.05 ± 0.40	K	NIST
Tboil	342.01 ± 0.20	K	NIST
Tboil	Outlier 341.85 ± 0.40	K	NIST
Tboil	342.03 ± 0.50	K	NIST
Tboil	341.94 ± 0.60	K	NIST
Tboil	342.15 ± 1.00	K	NIST
Tc	[513.40; 518.00]	K
Tc	518.00	K	KDB
Tc	513.40	K	Gas-Liq...
Tfus	[127.15; 132.00]	K
Tfus	132.00	K	KDB
Tfus	131.35 ± 1.00	K	NIST
Tfus	131.77 ± 0.15	K	NIST
Tfus	129.99 ± 2.00	K	NIST
Tfus	129.03 ± 0.70	K	NIST
Tfus	128.65 ± 1.00	K	NIST
Tfus	127.15 ± 1.50	K	NIST
Ttriple	132.03 ± 0.00	K	NIST
Vc	0.351	m3/kmol	KDB
Zc	0.2673100		KDB

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[145.03; 200.78]	J/mol×K	[340.84; 513.19]
Cp,gas	145.03	J/mol×K	340.84	Joback Calculated Property
Cp,gas	155.37	J/mol×K	369.56	Joback Calculated Property
Cp,gas	165.27	J/mol×K	398.29	Joback Calculated Property
Cp,gas	174.75	J/mol×K	427.01	Joback Calculated Property
Cp,gas	183.82	J/mol×K	455.74	Joback Calculated Property
Cp,gas	192.49	J/mol×K	484.46	Joback Calculated Property
Cp,gas	200.78	J/mol×K	513.19	Joback Calculated Property
Cp,liquid	178.36	J/mol×K	298.15	NIST
η	[0.0001858; 0.0040974]	Pa×s	[152.30; 340.84]
η	0.0040974	Pa×s	152.30	Joback Calculated Property
η	0.0015745	Pa×s	183.72	Joback Calculated Property
η	0.0008000	Pa×s	215.15	Joback Calculated Property
η	0.0004831	Pa×s	246.57	Joback Calculated Property
η	0.0003269	Pa×s	277.99	Joback Calculated Property
η	0.0002395	Pa×s	309.42	Joback Calculated Property
η	0.0001858	Pa×s	340.84	Joback Calculated Property
ΔfusH	[8.88; 8.88]	kJ/mol	[132.00; 132.03]
ΔfusH	8.88	kJ/mol	132.00	NIST
ΔfusH	8.88	kJ/mol	132.00	NIST
ΔfusH	8.88	kJ/mol	132.03	NIST
ΔvapH	[29.12; 32.20]	kJ/mol	[310.50; 342.00]
ΔvapH	32.20	kJ/mol	310.50	NIST
ΔvapH	29.12	kJ/mol	342.00	KDB
n0	1.39473		298.15	KDB
ρl	687.00	kg/m3	293.00	KDB
ΔfusS	67.24	J/mol×K	132.03	NIST
γ	0.02	N/m	298.20	KDB

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.65]	kPa	[245.88; 365.99]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.43327e+01
Coefficient B			-3.02937e+03
Coefficient C			-3.01870e+01
Temperature range, min.			245.88
Temperature range, max.			365.99
Pvap	1.33	kPa	245.88	Calculated Property
Pvap	3.02	kPa	259.23	Calculated Property
Pvap	6.26	kPa	272.57	Calculated Property
Pvap	12.02	kPa	285.92	Calculated Property
Pvap	21.63	kPa	299.26	Calculated Property
Pvap	36.83	kPa	312.61	Calculated Property
Pvap	59.76	kPa	325.95	Calculated Property
Pvap	92.99	kPa	339.30	Calculated Property
Pvap	139.50	kPa	352.64	Calculated Property
Pvap	202.65	kPa	365.99	Calculated Property
Pvap	[2.02e-07; 3180.15]	kPa	[132.00; 513.00]	KDB Vap...
Equation			ln(Pvp) = A + B/T + C*ln(T) + D*T^2
Coefficient A			5.77937e+01
Coefficient B			-5.52489e+03
Coefficient C			-6.43715e+00
Coefficient D			4.59912e-06
Temperature range, min.			132.00
Temperature range, max.			513.00
Pvap	2.02e-07	kPa	132.00	Calculated Property
Pvap	9.30e-04	kPa	174.33	Calculated Property
Pvap	0.12	kPa	216.67	Calculated Property
Pvap	2.72	kPa	259.00	Calculated Property
Pvap	22.92	kPa	301.33	Calculated Property
Pvap	106.67	kPa	343.67	Calculated Property
Pvap	339.39	kPa	386.00	Calculated Property
Pvap	837.50	kPa	428.33	Calculated Property
Pvap	1735.24	kPa	470.67	Calculated Property
Pvap	3180.15	kPa	513.00	Calculated Property

Similar Compounds

Find more compounds similar to 2-Hexene, (Z)-.

Sources

• KDB Vapor Pressure Data
• Crippen Method
• Crippen Method
• Gas-Liquid Critical Temperatures of Some Alkenes, Amines, and Cyclic Hydrocarbons
• Joback Method
• KDB
• McGowan Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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