Propanoic acid
- Formula: C3H6O2
- Molecular weight: 74.0785
- IUPAC Standard InChI: InChI=1S/C3H6O2/c1-2-3(4)5/h2H2,1H3,(H,4,5)
- IUPAC Standard InChIKey: XBDQKXXYIPTUBI-UHFFFAOYSA-N
- CAS Registry Number: 79-09-4
- 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. - Other names: Propionic acid; Carboxyethane; Ethanecarboxylic acid; Ethylformic acid; Luprisol; Luprosil; Metacetonic acid; Prozoin; Pseudoacetic acid; C2H5COOH; Methylacetic acid; Acide propionique; Kyselina propionova; Propionic acid grain preserver; Sentry grain preserver; Tenox P grain preservative; UN 1848; MonoProp; Antischim B; Propkorn; Propcorn; n-Propionic acid
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Data at other public NIST sites:
- Options:
Data at NIST subscription sites:
- NIST / TRC Web Thermo Tables, "lite" edition (thermophysical and thermochemical data)
- NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)
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.
Gas 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: Donald R. Burgess, Jr.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -108.9 ± 0.48 | kcal/mol | N/A | Lebedeva, 1964 | Value computed using ΔfHliquid° value of -510.8±0.1 kj/mol from Lebedeva, 1964 and ΔvapH° value of 55±2 kj/mol from missing citation. |
| ΔfH°gas | -108.9 ± 0.48 | kcal/mol | Ccb | Lebedeva, 1964 | Value computed using ΔfHliquid° from Lebedeva, 1964 and ΔvapH° value of 13. kcal/mol from Konicek and Wadso, 1970. |
| ΔfH°gas | -108.7 ± 0.76 | kcal/mol | Ccb | Schjanberg, 1935 | Value computed using ΔfHliquid° from Schjanberg, 1935 and ΔvapH° value of 13. kcal/mol from Konicek and Wadso, 1970. estimated uncertainty |
References
Go To: Top, Gas phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Lebedeva, 1964
Lebedeva, N.D.,
Heats of combustion of monocarboxylic acids,
Russ. J. Phys. Chem. (Engl. Transl.), 1964, 38, 1435-1437. [all data]
Konicek and Wadso, 1970
Konicek, J.; Wadso, I.,
Enthalpies of vaporization of organic compounds. VII. Some carboxylic acids,
Acta Chem. Scand., 1970, 24, 2612-26. [all data]
Schjanberg, 1935
Schjanberg, E.,
Die Verbrennungswarmen und die Refraktionsdaten einiger chlorsubstituierter Fettsauren und Ester.,
Z. Phys. Chem. Abt. A, 1935, 172, 197-233. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, References
- Symbols used in this document:
ΔfH°gas Enthalpy of formation of gas 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.