(E)-4-Ethylhex-2-ene

Formula: C₈H₁₆
Molecular weight: 112.2126
IUPAC Standard InChI: InChI=1S/C8H16/c1-4-7-8(5-2)6-3/h4,7-8H,5-6H2,1-3H3/b7-4+
IUPAC Standard InChIKey: STHONQMAWQLWLX-QPJJXVBHSA-N
CAS Registry Number: 19781-63-6
Chemical structure:
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Stereoisomers:
Other names: 2-Hexene, 4-ethyl, trans; (E)-2-Hexene, 4-ethyl; 3-Ethyl-trans-2-hexene
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Phase change data

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Data compiled by: William E. Acree, Jr., James S. Chickos

Quantity	Value	Units	Method	Reference	Comment
Δ_vapH°	9.49	kcal/mol	N/A	Reid, 1972
Δ_vapH°	9.30	kcal/mol	N/A	Reid, 1972

Gas Chromatography

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Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Kovats' RI, non-polar column, isothermal

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Column type	Active phase	Temperature (C)	I	Reference	Comment
Capillary	Petrocol DH	30.	753.5	Soják, Addová, et al., 2004	150. m/0.25 mm/1. μm, H2
Capillary	Squalane	30.	740.5	Soják, Addová, et al., 2004	He; Column length: 93. m; Column diameter: 0.25 mm
Capillary	Squalane	40.	743.	Matukuma, 1969	N2; Column length: 91.4 m; Column diameter: 0.25 mm

Normal alkane RI, non-polar column, temperature ramp

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Column type	Active phase	I	Reference	Comment
Capillary	Petrocol DH	754.	Sojak, Kubinec, et al., 2006	150. m/0.25 mm/1.0 μm, 1. K/min; T_start: 40. C; T_end: 300. C
Capillary	Petrocol DH	754.	Sojak, Kubinec, et al., 2006	150. m/0.25 mm/1.0 μm, 1. K/min; T_start: 40. C; T_end: 300. C

References

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Reid, 1972
Reid, Robert C., Handbook on vapor pressure and heats of vaporization of hydrocarbons and related compounds, R. C. Wilhort and B. J. Zwolinski, Texas A Research Foundation. College Station, Texas(1971). 329 pages.$10.00, AIChE J., 1972, 18, 6, 1278-1278, https://doi.org/10.1002/aic.690180637 . [all data]

Soják, Addová, et al., 2004
Soják, L.; Addová, G.; Kubinec, R.; Kraus, A.; Bohác, A., Capillary gas chromatography-mass spectrometry of all 93 acyclic octenes and their identification in fluid catalytic cracked gasoline, J. Chromatogr. A, 2004, 1025, 2, 237-253, https://doi.org/10.1016/j.chroma.2003.10.112 . [all data]

Matukuma, 1969
Matukuma, A., Retention indices of alkanes through C₁₀ and alkenes through C₈ and relation between boiling points and retention data, Gas Chromatogr., Int. Symp. Anal. Instrum. Div Instrum Soc. Amer., 1969, 7, 55-75. [all data]

Sojak, Kubinec, et al., 2006
Sojak, L.; Kubinec, R.; Jurdakova, H.; Hajekova, E.; Bajus, M., GC-MS of polyethylene and polypropylene thermal cracking produxts, Petroleum Coal, 2006, 48, 1, 1-14. [all data]

Notes

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Symbols used in this document:

Δ_vapH° Enthalpy of vaporization at standard conditions
Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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