3,5-Dimethoxybenzoic acid
- Formula: C9H10O4
- Molecular weight: 182.1733
- IUPAC Standard InChIKey: IWPZKOJSYQZABD-UHFFFAOYSA-N
- CAS Registry Number: 1132-21-4
- 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: Benzoic acid, 3,5-dimethoxy-
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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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°solid | -724.0 ± 1.5 | kJ/mol | Ccb | Colomina, Roux, et al., 1981 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -4246.7 ± 0.9 | kJ/mol | Ccb | Colomina, Roux, et al., 1981 | Corresponding ΔfHºsolid = -724.0 kJ/mol (simple calculation by NIST; no Washburn corrections) |
Phase change data
Go To: Top, Condensed phase thermochemistry data, References, Notes
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
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔsubH° | 127.1 ± 0.6 | kJ/mol | V | Colomina, Jimenez, et al., 1985 | ALS |
ΔsubH° | 127.1 ± 0.6 | kJ/mol | ME | Colomina, Jiménez, et al., 1985 | Based on data from 356. to 376. K.; AC |
Enthalpy of sublimation
ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
124.5 ± 0.6 | 369. | ME | Colomina, Jiménez, et al., 1985 | Based on data from 356. to 376. K.; AC |
References
Go To: Top, Condensed phase thermochemistry data, 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, Roux, et al., 1981
Colomina, M.; Roux, M.V.; Turrion, C.,
Thermochemical properties of benzoic acid derivatives. X. Enghalpies of combustion and formation of 2,3-, 2,4-, 2,6-, 3,4-, and 3,5-dimethoxybenzoic acids,
J. Chem. Thermodyn., 1981, 13, 1169-1173. [all data]
Colomina, Jimenez, et al., 1985
Colomina, M.; Jimenez, P.; Roux, M.V.; Turrion, C.,
Thermochemical properties of benzoic acid derivatives. XII. Vapour pressures and enthalpies of sublimation and formation of five dimethoxybenzoic acids,
J. Chem. Thermodyn., 1985, 17, 1091-10. [all data]
Colomina, Jiménez, et al., 1985
Colomina, M.; Jiménez, P.; Roux, M.V.; Turrión, C.,
Thermochemical properties of benzoic acid derivatives XII. Vapour pressures and enthalpies of sublimation and formation of five dimethoxybenzoic acids,
The Journal of Chemical Thermodynamics, 1985, 17, 11, 1091-1096, https://doi.org/10.1016/0021-9614(85)90096-5
. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions 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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