2,3,6,7-Tetrachloroquinoxaline
- Formula: C8H2Cl4N2
- Molecular weight: 267.927
- IUPAC Standard InChI: InChI=1S/C8H2Cl4N2/c9-3-1-5-6(2-4(3)10)14-8(12)7(11)13-5/h1-2H
- IUPAC Standard InChIKey: GQWLQHHUPKCOJH-UHFFFAOYSA-N
- CAS Registry Number: 25983-14-6
- Chemical structure:
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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 by: William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔsubH° | 105.9 ± 2.2 | kJ/mol | ME | Morais, Miranda, et al., 2004 | |
| ΔsubH° | 108.2 ± 1.9 | kJ/mol | ME | Monte and Hillesheim, 2000 |
Enthalpy of sublimation
| ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 106.2 ± 0.3 | 354. | ME | Monte and Hillesheim, 2000 | Based on data from 347. to 361. K. |
Enthalpy of fusion
| ΔfusH (kJ/mol) | Temperature (K) | Reference |
|---|---|---|
| 29.6 | 446. | Monte and Hillesheim, 2000 |
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.
Morais, Miranda, et al., 2004
Morais, Victor M.F.; Miranda, Margarida S.; Matos, M. Agostinha R.,
Thermochemical study of chloropyrazines and chloroquinoxalines,
The Journal of Chemical Thermodynamics, 2004, 36, 5, 377-383, https://doi.org/10.1016/j.jct.2004.01.005
. [all data]
Monte and Hillesheim, 2000
Monte, Manuel J.S.; Hillesheim, Dorothea M.,
Thermodynamic Study on the Sublimation of Six Substituted Quinoxalines,
J. Chem. Eng. Data, 2000, 45, 6, 1088-1092, https://doi.org/10.1021/je0001577
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
ΔfusH Enthalpy of fusion 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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