3-Ethylbenzoic acid
- Formula: C9H10O2
- Molecular weight: 150.1745
- IUPAC Standard InChI: InChI=1S/C9H10O2/c1-2-7-4-3-5-8(6-7)9(10)11/h3-6H,2H2,1H3,(H,10,11)
- IUPAC Standard InChIKey: HXUSUAKIRZZMGP-UHFFFAOYSA-N
- CAS Registry Number: 619-20-5
- 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tfus | 318. | K | N/A | Crawford and Stewart, 1952 | Uncertainty assigned by TRC = 4. K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔsubH° | 99.7 ± 0.4 | kJ/mol | ME | Colomina, Jimenez, et al., 1984 | AC |
| ΔsubH° | 99.1 ± 0.4 | kJ/mol | V | Colomina, Jimenez, et al., 1976 | ALS |
| ΔsubH° | 99.1 | kJ/mol | N/A | Colomina, Jimenez, et al., 1976 | DRB |
| ΔsubH° | 99.1 ± 2.5 | kJ/mol | ME | Colomina, Jimenez, et al., 1976 | Based on data from 300. to 318. K.; AC |
Enthalpy of sublimation
| ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 99.1 | 309. | ME | Stephenson and Malanowski, 1987 | Based on data from 300. to 318. K. See also Colomina, Jimenez, et al., 1976.; 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.
Crawford and Stewart, 1952
Crawford, M.; Stewart, F.H.C.,
The Preparation of Some Alkyl-substituted Benzoic Acids,
J. Chem. Soc., 1952, 1952, 4443-7. [all data]
Colomina, Jimenez, et al., 1984
Colomina, M.; Jimenez, P.; Roux, M.V.; Turrion, C.,
Thermochemistry of p-ethylbenzoic acid,
J. Chem. Thermodyn., 1984, 16, 379-384. [all data]
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]
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:
Tfus Fusion (melting) 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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