Thioxanthone
- Formula: C13H8OS
- Molecular weight: 212.267
- IUPAC Standard InChI: InChI=1S/C13H8OS/c14-13-9-5-1-3-7-11(9)15-12-8-4-2-6-10(12)13/h1-8H
- IUPAC Standard InChIKey: YRHRIQCWCFGUEQ-UHFFFAOYSA-N
- CAS Registry Number: 492-22-8
- 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: 9H-Thioxanthen-9-one; Thioxanthen-9-one; Thiaxanthenone; Thiaxanthon; Thiaxanthone; Thioxanthene-9-one; Thioxanthene, 9-oxo-; Thioxanthenone; 9-Thioxanthone; 9H-Thioxanthene, 9-oxo-; 10-Thioxanthone; NSC 15912; NSC 658181
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Data at other public NIST sites:
- Options:
Data at NIST subscription sites:
NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.
Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, 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°gas | 94.3 ± 3.6 | kJ/mol | Ccr | Sabbah and El Watik, 1992 | Published also in Calorim. Anal. Therm. 23,477 1992 |
Condensed phase thermochemistry data
Go To: Top, Gas phase thermochemistry data, 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 | -20.5 ± 3.6 | kJ/mol | Ccr | Sabbah and El Watik, 1992 | Published also in Calorim. Anal. Therm. 23,477 1992 |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°solid | -6840.5 ± 3.5 | kJ/mol | Ccr | Sabbah and El Watik, 1992 | Published also in Calorim. Anal. Therm. 23,477 1992 |
Phase change data
Go To: Top, Gas phase thermochemistry data, 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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tfus | 487.88 | K | N/A | Sabbah and Watik, 1992 | Uncertainty assigned by TRC = 0.02 K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔsubH° | 114.81 ± 0.41 | kJ/mol | C | Sabbah and El Watik, 1992 | Published also in Calorim. Anal. Therm. 23,477 1992; ALS |
| ΔsubH° | 114.8 ± 0.4 | kJ/mol | C | Sabbah and Watik, 1992, 2 | AC |
Reduced pressure boiling point
| Tboil (K) | Pressure (bar) | Reference | Comment |
|---|---|---|---|
| 645.2 | 0.953 | Aldrich Chemical Company Inc., 1990 | BS |
Enthalpy of fusion
| ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 35.500 | 487.88 | Sabbah and El Watik, 1992, 2 | DH |
| 35.5 | 487.9 | Sabbah and Watik, 1992, 2 | AC |
References
Go To: Top, Gas phase thermochemistry data, 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.
Sabbah and El Watik, 1992
Sabbah, R.; El Watik, L.,
Etude thermodynamique de l'acridone et de la thioxanthone,
Can. J. Chem., 1992, 70, 24-28. [all data]
Sabbah and Watik, 1992
Sabbah, R.; Watik, L.E.,
Can. J. Chem., 1992, 70, 24. [all data]
Sabbah and Watik, 1992, 2
Sabbah, Raphaël; Watik, Lahcen El,
Étude thermodynamique de l'acridone et de la thioxanthone,
Can. J. Chem., 1992, 70, 1, 24-28, https://doi.org/10.1139/v92-005
. [all data]
Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc.,
Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]
Sabbah and El Watik, 1992, 2
Sabbah, R.; El Watik, L.,
Etude thermodynamique de l'aridone et de la thioxanthone,
Calorim. Anal. Therm., 1992, 23, 477-478. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔfusH Enthalpy of fusion ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.