Benzene, 1,2-dichloro-
- Formula: C6H4Cl2
- Molecular weight: 147.002
- IUPAC Standard InChI: InChI=1S/C6H4Cl2/c7-5-3-1-2-4-6(5)8/h1-4H
- IUPAC Standard InChIKey: RFFLAFLAYFXFSW-UHFFFAOYSA-N
- CAS Registry Number: 95-50-1
- 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. - Isotopologues:
- Other names: Benzene, o-dichloro-; o-Dichlorobenzene; Cloroben; Dilantin DB; Dowtherm E; 1,2-Dichlorbenzene; 1,2-Dichlorobenzene; Chloroben; o-Dichlorobenzol; Dilatin db; ortho-Dichlorobenzene; o-Dichlorbenzene; o-Dichlorbenzol; Dichlorobenzene, o-; Dizene; DCB; NCI-C54944; ODB; ODCB; Special termite fluid; Termitkil; Chloroden; Dichlorobenzene, ortho; Orthodichlorobenzol; UN 1591; NSC 60644
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Condensed phase thermochemistry 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°liquid | -4.16 ± 0.31 | kcal/mol | Ccb | Sinke and Stull, 1958 | Reanalyzed by Cox and Pilcher, 1970, Original value = -4.4 ± 0.3 kcal/mol; ALS |
| ΔfH°liquid | -3.8 ± 0.4 | kcal/mol | Ccr | Bjellerup and Smith, 1954 | At 293 K; ALS |
| ΔfH°liquid | -4.20 ± 0.17 | kcal/mol | Ccb | Hubbard, Knowlton, et al., 1954 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°liquid | -708. ± 1. | kcal/mol | AVG | N/A | Average of 6 values; Individual data points |
Constant pressure heat capacity of liquid
| Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 40.85 | 298.15 | Narbutt, 1918 | T = 197 to 375 K. Cp = 0.27022 + 0.0003024t cal/g*K. Cp value calculated from equation.; DH |
References
Go To: Top, Condensed phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Sinke and Stull, 1958
Sinke, G.C.; Stull, D.R.,
Heats of combustion of some organic compounds containing chlorine,
J. Phys. Chem., 1958, 62, 397-401. [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]
Bjellerup and Smith, 1954
Bjellerup, L.; Smith, L.,
Heats of combustion of some organic chloro-compounds,
Kgl. Fysiograph. Sallskap. Lund Forh., 1954, 24, 1-13. [all data]
Hubbard, Knowlton, et al., 1954
Hubbard, W.N.; Knowlton, J.W.; Huffman, H.M.,
Combustion calorimetry of organic chlorine compounds. Heats of combustion of chlorobenzene, the dichlorobenzenes and o- and p-chloroethylbenzene,
J. Phys. Chem., 1954, 58, 396. [all data]
Narbutt, 1918
Narbutt, J.,
Die Spezifischen Warmen und Schmelzwarmen der dichloro-, chlorbrom-, dibrom-, bromjod-, und dijodbenzole. I,
Z. Elektrochem., 1918, 24, 339-342. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,liquid Constant pressure heat capacity of liquid ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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