2,6-dichlorohydroquinone
- Formula: C6H4Cl2O2
- Molecular weight: 179.001
- IUPAC Standard InChIKey: QQAHQUBHRBQWBL-UHFFFAOYSA-N
- CAS Registry Number: 20103-10-0
- 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: 2,6-Dichloro-1,4-benzenediol
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Condensed phase thermochemistry data
Go To: Top, Phase change 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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°solid | -433.9 | kJ/mol | Ccb | Sjostrom, 1936 | At 318 K |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -2556.4 ± 8.4 | kJ/mol | Ccb | Smith, Bjellerup, et al., 1953 | Reanalyzed by Cox and Pilcher, 1970, Original value = -2557.6 ± 5.4 kJ/mol |
ΔcH°solid | -2551. | kJ/mol | Ccb | Sjostrom, 1936 | At 318 K |
ΔcH°solid | -2569. | kJ/mol | Ccb | Swietoslawski and Starczedska, 1925 |
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° | 92.05 | kJ/mol | V | Coolidge and Coolidge, 1927 | ALS |
Enthalpy of sublimation
ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
92.0 ± 8.3 | 324. to 345. | QF | Coolidge and Coolidge, 1927 | See also Jones, 1960 and Cox and Pilcher, 1970, 2.; 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.
Sjostrom, 1936
Sjostrom, Av.G.,
De klorsubstituerade kinonernas och hydrokinonernas termokemi,
Svensk. Kim. Tidr., 1936, 48, 121-124. [all data]
Smith, Bjellerup, et al., 1953
Smith, L.; Bjellerup, L.; Krook, S.; Westermark, H.,
Heats of combustion of organic chloro compounds determined by the "quartz wool" method,
Acta Chem. Scand., 1953, 7, 65. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Swietoslawski and Starczedska, 1925
Swietoslawski, W.; Starczedska, H.,
Correction des donnees thermochimiques de M.A. Valeur,
J. Chem. Phys., 1925, 22, 399-401. [all data]
Coolidge and Coolidge, 1927
Coolidge, A.S.; Coolidge, M.S.,
The sublimation pressures of substituted quinones and hydroquinones,
J. Am. Chem. Soc., 1927, 49, 100-104. [all data]
Jones, 1960
Jones, A.H.,
Sublimation Pressure Data for Organic Compounds.,
J. Chem. Eng. Data, 1960, 5, 2, 196-200, https://doi.org/10.1021/je60006a019
. [all data]
Cox and Pilcher, 1970, 2
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press Inc., London, 1970, 643. [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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