9-Octadecenoic acid, (E)-
- Formula: C18H34O2
- Molecular weight: 282.4614
- IUPAC Standard InChI: InChI=1S/C18H34O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h9-10H,2-8,11-17H2,1H3,(H,19,20)/b10-9+
- IUPAC Standard InChIKey: ZQPPMHVWECSIRJ-MDZDMXLPSA-N
- CAS Registry Number: 112-79-8
- Chemical structure:
This structure is also available as a 2d Mol file - Species with the same structure:
- Stereoisomers:
- Other names: trans-δ9-Octadecenoic acid; trans-Octadec-9-enoic acid; trans-Oleic acid; trans-9-Octadecenoic acid; Elaidic acid; (E)-9-Octadecenoic acid; (E)-Palmitoleic acid; trans-Elaidic acid; (E)-Palmitelaidic acid; trans-.delta.(sup 9)-Octadecenoic acid
- Information on this page:
- Other data available:
- Options:
Data at NIST subscription sites:
NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.
Condensed phase thermochemistry data
Go To: Top, 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°liquid | -183.8 | kcal/mol | Chyd | Rogers, Hoyte, et al., 1978 | |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°solid | -2638.73 | kcal/mol | Ccb | Keffler, 1930 | At 293 °K; Corresponding ΔfHºsolid = -215.55 kcal/mol (simple calculation by NIST; no Washburn corrections) |
References
Go To: Top, Condensed phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Rogers, Hoyte, et al., 1978
Rogers, D.W.; Hoyte, O.P.A.; Ho, R.K.C.,
Heats of hydrogenation of large molecules. Part 2. Six unsaturated and polyunsaturated fatty acids,
J. Chem. Soc. Faraday Trans. 1, 1978, 74, 46-52. [all data]
Keffler, 1930
Keffler, L.J.P.,
Calorimetric researches on geometrical isomerism. Part I. Preliminary studies on oleic and elaidic acids and esters from a comparison of their heats of combustion,
J. Phys. Chem., 1930, 34, 1319-1325. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.