(E)-9-Octadecenoic acid ethyl ester
- Formula: C20H38O2
- Molecular weight: 310.5145
- IUPAC Standard InChI: InChI=1S/C20H38O2/c1-3-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20(21)22-4-2/h11-12H,3-10,13-19H2,1-2H3/b12-11+
- IUPAC Standard InChIKey: LVGKNOAMLMIIKO-VAWYXSNFSA-N
- CAS Registry Number: 6114-18-7
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Stereoisomers:
- Other names: 9-Octadecenoic acid, ethyl ester, (E)-; Ethyl 9-octadecenoate, (E)-; Ethyl (9E)-9-octadecenoate; Elaidic acid, ethyl ester; Ethyl elaidate; trans-9-Octadecenoic acid, ethyl ester
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Condensed phase thermochemistry data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔcH°liquid | -12528. ± 12. | kJ/mol | Ccb | Keffler, 1937 | Reanalyzed by Cox and Pilcher, 1970, Original value = -12506. kJ/mol; See Keffler and McLean, 1935; Corresponding ΔfHºliquid = -773.25 kJ/mol (simple calculation by NIST; no Washburn corrections) |
Phase change data
Go To: Top, Condensed phase thermochemistry data, Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Robert L. Brown and Stephen E. Stein
Reduced pressure boiling point
| Tboil (K) | Pressure (bar) | Reference |
|---|---|---|
| 491.2 | 0.020 | Weast and Grasselli, 1989 |
Gas Chromatography
Go To: Top, Condensed phase thermochemistry data, Phase change data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Van Den Dool and Kratz RI, non-polar column, custom temperature program
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | HP-5MS | 2174.2 | Andriamaharavo, 2014 | 30. m/0.25 mm/0.25 μm, He; Program: 60C (1 min) => 5 C/min => 210C => 10 C/min => 280C (15 min) |
Van Den Dool and Kratz RI, polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | ZB-Wax | 2476. | Ledauphin, Saint-Clair, et al., 2004 | 30. m/0.25 mm/0.15 μm, He, 35. C @ 10. min, 1.8 K/min, 220. C @ 10. min |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Keffler, 1937
Keffler, L.J.P.,
Homology and isomerism in long-chain compounds. I. A thermochemical study of the n-alkyl esters derived from the monoethylenic monocarboxylic acids in C18,
J. Phys. Chem., 1937, 41, 715-721. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Keffler and McLean, 1935
Keffler, L.; McLean, J.H.,
Homology in long-chain compounds, I. Oleic acid and the n-alkul oleates,
J. Soc. Chem. Ind., 1935, 178-185. [all data]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Andriamaharavo, 2014
Andriamaharavo, N.R.,
Retention Data. NIST Mass Spectrometry Data Center., NIST Mass Spectrometry Data Center, 2014. [all data]
Ledauphin, Saint-Clair, et al., 2004
Ledauphin, J.; Saint-Clair, J.-F.; Lablanquie, O.; Guichard, H.; Founier, N.; Guichard, E.; Barillier, D.,
Identification of trace volatile compounds in freshly distilled calvados and cognac using preparative separations coupled with gas chromatography-mass spectrometry,
J. Agric. Food Chem., 2004, 52, 16, 5124-5134, https://doi.org/10.1021/jf040052y
. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas Chromatography, References
- Symbols used in this document:
Tboil Boiling point ΔcH°liquid Enthalpy of combustion of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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