PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Benzenethiol; (Thiophenol; Phenyl mercaptan) | 108-98-5 | 2337 |
6.00
14.01
4.01
11.01
14.02
4.05
7.01
8.00
7.00
11.00
|
|||||||||
| Formula | Synonyms | |||||||||||
| C6H6S | PHENYL MERCAPTAN, BENZENE, MERCAPTO-, BENZENETHIOL, FENILMERCAPTANO (DOT SPANISH), MERCAPTAN PHÉNYLIQUE (DOT FRENCH), MERCAPTOBENZENE, PHENOL, THIO-, PHENYLTHIOL, THIOPHENOL | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 110.18 | L | -14.8 | 169.5 | 2 | 25 | 1.073 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.30 | 0.53 | 1.6 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 1.4 | 2.4 | 7.2 |
Technical Basis
A review of available sources identified exposure limits for this chemical including an AEGL-2, AEGL-3, and TLV-TWA for this chemical. The AEGLs were selected as the TEEL-2 and TEEL-3 due to their priority among the emergency exposure limits (Section 1). Due to insufficient data, an AEGL-1 does not exist for this chemical; therefore, the TLV-TWA was selected as the TEEL-1 basis and calculated according to Table 3.5.
• TEEL-1 = TLV-TWA (0.1 ppm) x 3
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL-1 values consistent with Rev. 29A*.
• TEEL-1 = TLV-TWA (0.1 ppm) x 3
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL-1 values consistent with Rev. 29A*.
References
AEGLs. Chemical information retrieved from Table 3-2 of the EPA Technical Support Document. https://www.epa.gov/aegl/phenyl-mercaptan-results-aegl-program
Exposure limits: https://www.osha.gov/chemicaldata/95