2-Ethylbenzoic acid
- Formula: C9H10O2
- Molecular weight: 150.1745
- IUPAC Standard InChI: InChI=1S/C9H10O2/c1-2-7-5-3-4-6-8(7)9(10)11/h3-6H,2H2,1H3,(H,10,11)
- IUPAC Standard InChIKey: CGMMPMYKMDITEA-UHFFFAOYSA-N
- CAS Registry Number: 612-19-1
- Chemical structure:
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Condensed phase thermochemistry 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°solid | -441.4 ± 1.5 | kJ/mol | Ccb | Colomina, Jimenez, et al., 1976 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°solid | -4529.4 ± 3.7 | kJ/mol | Ccb | Colomina, Jimenez, et al., 1976 | Corresponding ΔfHºsolid = -441.37 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
Constant pressure heat capacity of solid
| Cp,solid (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 208.7 | 298.15 | Colomina, Jimenez, et al., 1984 | Cp given as 1.39 J/g*K.; DH |
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.
Colomina, Jimenez, et al., 1976
Colomina, M.; Jimenez, P.; Perez-Ossorio, R.; Turrion, C.,
Thermochemical properties of alkylbenzoic acids VI. Enthalpies of combustion and formation of the o-, m-, and p-ethylbenzoic acids,
J. Chem. Thermodyn., 1976, 8, 439-444. [all data]
Colomina, Jimenez, et al., 1984
Colomina, M.; Jimenez, P.; Roux, M.V.; Turrion, C.,
Thermochemical properties of benzoic acid derivatives. XI. Vapour pressures and enthalpies of sublimation and formation of the six dimethylbenzoic acids,
J. Chem. Thermodyn., 1984, 16, 1121-1127. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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