6-Octadecenoic acid, (Z)-
- Formula: C18H34O2
- Molecular weight: 282.4614
- IUPAC Standard InChIKey: CNVZJPUDSLNTQU-SEYXRHQNSA-N
- CAS Registry Number: 593-39-5
- Chemical structure:
This structure is also available as a 2d Mol file - Species with the same structure:
- Other names: cis- -6-Octadecenoic acid; (Z)-Octadec-6-enoic acid; Petroselinic acid; cis- -12,δ-6-Octadecenoic acid
- Information on this page:
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Phase change 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 as indicated in comments:
DH - Eugene S. Domalski and Elizabeth D. Hearing
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 301.65 | K | N/A | Sato, Yoshimoto, et al., 1990 | Low-melting form.; DH |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
11.353 | 303.65 | Sato, Yoshimoto, et al., 1990 | High-melting form.; DH |
14.3 | 302.3 | Moore, Koelmel, et al., 2007 | AC |
11.4 | 303.7 | Domalski and Hearing, 1996 | AC |
Entropy of fusion
ΔfusS (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
37.38 | 303.65 | Sato, Yoshimoto, et al., 1990 | High-melting; DH |
Mass spectrum (electron ionization)
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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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
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Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Japan AIST/NIMC Database- Spectrum MS-NW-5978 |
NIST MS number | 233200 |
References
Go To: Top, Phase change data, Mass spectrum (electron ionization), NIST Subscription Links, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Sato, Yoshimoto, et al., 1990
Sato, K.; Yoshimoto, N.; Suzuki, M.; Kobayashi, M.; Kaneko, F.,
Structure and transformation in polymorphism of petroselinic acid (cis-w-12-octadecenoic acid),
J. Phys. Chem., 1990, 94, 3180-3185. [all data]
Moore, Koelmel, et al., 2007
Moore, David J.; Koelmel, Donald; Laura, Donna; Bedford, Eilidh,
Infrared spectroscopy and differential scanning calorimetry studies of binary combinations of cis-6-octadecenoic acid and octadecanoic acid,
Chemistry and Physics of Lipids, 2007, 150, 1, 109-115, https://doi.org/10.1016/j.chemphyslip.2007.06.217
. [all data]
Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III,
J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985
. [all data]
Notes
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- Symbols used in this document:
Tfus Fusion (melting) point ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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