1,2,4-Benzenetriol
- Formula: C6H6O3
- Molecular weight: 126.1100
- IUPAC Standard InChI: InChI=1S/C6H6O3/c7-4-1-2-5(8)6(9)3-4/h1-3,7-9H
- IUPAC Standard InChIKey: GGNQRNBDZQJCCN-UHFFFAOYSA-N
- CAS Registry Number: 533-73-3
- 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: 1,3,4-Benzenetriol; 2,5-Dihydroxyphenol; Hydroxyhydroquinone; 2-Hydroxy-1,4-hydroquinone; 1,2,4-Trihydroxybenzene; 1,3,4-Trihydroxybenzene; Benzene-1,2,4-triol; Hydroquinone, hydroxy-; Hydroxyquinol; Oxyhydrochinon; Oxyhydroquinone; NSC 2818; 2-Hydroxy-p-benzohydroquinone
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Phase change data
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 as indicated in comments:
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 |
|---|---|---|---|---|---|
| ΔsubH° | 124.2 ± 0.6 | kJ/mol | GS | Verevkin and Schick, 2004 | Based on data from 341. to 382. K.; AC |
| ΔsubH° | 119.8 ± 1.2 | kJ/mol | C | Ribeiro Da Silva, Ribeiro Da Silva, et al., 1986 | ALS |
| ΔsubH° | 119.8 | kJ/mol | N/A | Ribeiro Da Silva, Ribeiro Da Silva, et al., 1986 | DRB |
| ΔsubH° | 119.8 ± 1.6 | kJ/mol | C | Ribeiro Da Silva, Ribeiro Da Silva, et al., 1986 | AC |
Enthalpy of fusion
| ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 28.8 | 413.2 | Verevkin and Schick, 2004 | 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.
Verevkin and Schick, 2004
Verevkin, Sergey P.; Schick, Christoph,
Determination of vapor pressures, enthalpies of sublimation, and enthalpies of fusion of benzenetriols,
Thermochimica Acta, 2004, 415, 1-2, 35-42, https://doi.org/10.1016/j.tca.2003.09.011
. [all data]
Ribeiro Da Silva, Ribeiro Da Silva, et al., 1986
Ribeiro Da Silva, M.D.M.C.; Ribeiro Da Silva, M.A.V.; Pilcher, G.,
Enthalpies of combustion of the three trihydroxybenzenes and of 3-methoxycatechol and 4-nitrocatechol,
J. Chem. Thermodyn., 1986, 18, 295-300. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
ΔfusH Enthalpy of fusion ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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