Benzoic acid, 2,4-dimethyl-
- Formula: C9H10O2
- Molecular weight: 150.1745
- IUPAC Standard InChIKey: BKYWPNROPGQIFZ-UHFFFAOYSA-N
- CAS Registry Number: 611-01-8
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: 2,4-Dimethylbenzoic acid; 4-Carboxy-1,3-dimethylbenzene
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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
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔsubH° | 24.74 ± 0.07 | kcal/mol | V | Colomina, Jimenez, et al., 1984 | see Colomina, Perez-Ossorio, et al., 1961 and Colomina, Perez Ossorio, et al., 1959; ALS |
ΔsubH° | 24.74 | kcal/mol | N/A | Colomina, Jimenez, et al., 1984 | DRB |
ΔsubH° | 24.74 ± 0.07 | kcal/mol | ME | Colomina, Jimenez, et al., 1984 | Based on data from 312. to 331. K.; AC |
Reduced pressure boiling point
Tboil (K) | Pressure (atm) | Reference | Comment |
---|---|---|---|
540.2 | 0.957 | Aldrich Chemical Company Inc., 1990 | BS |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
24.55 ± 0.07 | 321. | ME | Colomina, Jimenez, et al., 1984 | Based on data from 312. to 331. K.; 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.
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]
Colomina, Perez-Ossorio, et al., 1961
Colomina, M.; Perez-Ossorio, R.; Boned, M.L.; Panea, M.; Turrion, C.,
Investigaciones termoquimicas sobre los acidos alquilbenzoicos. II. Acidos dimetrilbenzoicos,
Anal. Fisc. Quim. B, 1961, 57, 665-672. [all data]
Colomina, Perez Ossorio, et al., 1959
Colomina, M.; Perez Ossorio, R.; Boned, M.L.; Panea, M.; Turrion, C.,
Thermochemical investigations on methylsubstituted benzoic acids, Rpt. for the U.S. Dept. of the Army, European Research Office contract no. DA-91-508-EUC-358 by Instituto de Quimica Fisica Madrid, Spain, 1959, 1-36. [all data]
Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc.,
Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]
Notes
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- 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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