Eicosanedioic acid
- Formula: C20H38O4
- Molecular weight: 342.5133
- IUPAC Standard InChI: InChI=1S/C20H38O4/c21-19(22)17-15-13-11-9-7-5-3-1-2-4-6-8-10-12-14-16-18-20(23)24/h1-18H2,(H,21,22)(H,23,24)
- IUPAC Standard InChIKey: JJOJFIHJIRWASH-UHFFFAOYSA-N
- CAS Registry Number: 2424-92-2
- Chemical structure:
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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:
BS - Robert L. Brown and Stephen E. Stein
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔsubH° | 166. ± 3. | kJ/mol | V | Davies and Thomas, 1960 | ALS |
| ΔsubH° | 170.0 ± 3.3 | kJ/mol | N/A | Davies and Thomas, 1960 | See also Ribeiro da Silva, Monte, et al., 1999.; AC |
Reduced pressure boiling point
| Tboil (K) | Pressure (bar) | Reference | Comment |
|---|---|---|---|
| 506.7 | 0.003 | Weast and Grasselli, 1989 | BS |
Enthalpy of sublimation
| ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 199.5 | 341. | A | Stephenson and Malanowski, 1987 | Based on data from 336. to 346. K.; AC |
| 165.7 ± 3.3 | 388. | ME | Davies and Thomas, 1960 | Based on data from 380. to 395. K. See also Stephenson and Malanowski, 1987.; AC |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Davies and Thomas, 1960
Davies, M.; Thomas, G.H.,
The lattice energies, infra-red spectra, and possible cyclization of some dicarboxylic acids,
Trans. Faraday Soc., 1960, 56, 185. [all data]
Ribeiro da Silva, Monte, et al., 1999
Ribeiro da Silva, Manuel A.V.; Monte, Manuel J.S.; Ribeiro, José R.,
Vapour pressures and the enthalpies and entropies of sublimation of five dicarboxylic acids,
The Journal of Chemical Thermodynamics, 1999, 31, 8, 1093-1107, https://doi.org/10.1006/jcht.1999.0522
. [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]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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