Acetic acid
- Formula: C2H4O2
- Molecular weight: 60.0520
- IUPAC Standard InChI: InChI=1S/C2H4O2/c1-2(3)4/h1H3,(H,3,4)
- IUPAC Standard InChIKey: QTBSBXVTEAMEQO-UHFFFAOYSA-N
- CAS Registry Number: 64-19-7
- 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. - Isotopologues:
- Other names: Ethanoic acid; Ethylic acid; Glacial acetic acid; Methanecarboxylic acid; Vinegar acid; CH3COOH; Acetasol; Acide acetique; Acido acetico; Azijnzuur; Essigsaeure; Octowy kwas; Acetic acid, glacial; Kyselina octova; UN 2789; Aci-jel; Shotgun; Ethanoic acid monomer; NSC 132953
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Enthalpy of formation of gas at standard conditions (nominally 298.15 K, 1 atm.)
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.
| ΔfH°gas (kcal/mol) | Method | Reference | Comment |
|---|---|---|---|
| -103.2 ± 0.36 | N/A | Steele, Chirico, et al., 1997 | Value computed using ΔfHliquid° value of -483.52±0.36 kj/mol from Steele, Chirico, et al., 1997 and ΔvapH° value of 51.6±1.5 kj/mol from missing citation.; DRB |
| -103.2 ± 0.36 | Ccb | Steele, Chirico, et al., 1997 | Value computed using ΔfHliquid° from Steele, Chirico, et al., 1997 and ΔvapH° value of 12.3 kcal/mol from Konicek and Wadso, 1970.; DRB |
| -103.5 ± 0.36 | N/A | Lebedeva, 1964 | Value computed using ΔfHliquid° value of -484.5±0.2 kj/mol from Lebedeva, 1964 and ΔvapH° value of 51.6±1.5 kj/mol from missing citation.; DRB |
| -103.5 ± 0.36 | Ccb | Lebedeva, 1964 | Value computed using ΔfHliquid° from Lebedeva, 1964 and ΔvapH° value of 12.3 kcal/mol from Konicek and Wadso, 1970.; DRB |
| -103.4 ± 0.38 | N/A | Evans and Skinner, 1959 | Value computed using ΔfHliquid° value of -484.1±0.4 kj/mol from Evans and Skinner, 1959 and ΔvapH° value of 51.6±1.5 kj/mol from missing citation.; DRB |
| -103.4 ± 0.38 | Ccb | Evans and Skinner, 1959 | Value computed using ΔfHliquid° from Evans and Skinner, 1959 and ΔvapH° value of 12.3 kcal/mol from Konicek and Wadso, 1970.; DRB |
| -104.1 | N/A | Carson and Skinner, 1949 | Value computed using ΔfHliquid° value of -487 kj/mol from Carson and Skinner, 1949 and ΔvapH° value of 51.6±1.5 kj/mol from missing citation.; DRB |
| -104.1 ± 1.0 | Cm | Carson and Skinner, 1949 | Value computed using ΔfHliquid° from Carson and Skinner, 1949 and ΔvapH° value of 12.3 kcal/mol from Konicek and Wadso, 1970. estimated uncertainty; DRB |
References
Go To: Top, Enthalpy of formation of gas at standard conditions (nominally 298.15 K, 1 atm.), Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Steele, Chirico, et al., 1997
Steele, W.V.; Chirico, R.D.; Cowell, A.B.; Knipmeyer, S.E.; Nguyen, A.,
Thermodynamic properties and ideal-gas enthalpies of formation for 2-aminoisobutyric acid (2-methylalanine), acetic acid, (4-methyl-3-penten-2-one), 4-methylpent-1-ene, 2,2'-bis(phenylthio)propane, and glycidyl phenyl ether (1,2-epoxy-3-phenoxypropane),
J. Chem. Eng. Data, 1997, 42, 1052-1066. [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]
Lebedeva, 1964
Lebedeva, N.D.,
Heats of combustion of monocarboxylic acids,
Russ. J. Phys. Chem. (Engl. Transl.), 1964, 38, 1435-1437. [all data]
Evans and Skinner, 1959
Evans, F.W.; Skinner, H.A.,
The heat of combustion of acetic acid,
Trans. Faraday Soc., 1959, 55, 260-261. [all data]
Carson and Skinner, 1949
Carson, A.S.; Skinner, H.A.,
201. Carbon-halogen bond energies in the acetyl halides,
J. Chem. Soc., 1949, 936-939. [all data]
Notes
Go To: Top, Enthalpy of formation of gas at standard conditions (nominally 298.15 K, 1 atm.), 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
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