PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ethanethiol; (Ethyl mercaptan) | 75-08-1 | 2363 |
15.01
11.01
4.05
7.01
8.00
7.00
11.00
4.02
4.09
4.10
|
|||||||||
| Formula | Synonyms | |||||||||||
| C2H6S | ETHYL MERCAPTAN, ETHANETHIOL, ETHYL HYDROSULFIDE, ETHYL SULFHYDRATE, ETHYL THIOALCOHOL, ETILMERCAPTANO (DOT SPANISH), MERCAPTAN ÉTHYLIQUE (DOT FRENCH), MERCAPTOETHANE, THIOETHANOL, THIOETHYL ALCOHOL | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 62.13 | L | -147.88 | 35 | 750 | 34.7 | 0.8315 | 28000 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 1.0 | 120 | 360 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 2.5 | 300 | 910 |
Technical Basis
A review of available sources identified AEGLs for this chemical. The AEGLs were selected as the TEELs due to their priority among the emergency exposure limits (Section 1). Values in units mg/m3 are reported as published in the technical support Table 1, per guidance (Section 3.4.7.2).
• TEEL-1 = AEGL-1
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL ppm values consistent with Rev. 29A. The minor difference in the reported TEEL-2 value in units mg/m3 may be due to conversion and rounding of this value, instead of use of the source value.
• TEEL-1 = AEGL-1
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL ppm values consistent with Rev. 29A. The minor difference in the reported TEEL-2 value in units mg/m3 may be due to conversion and rounding of this value, instead of use of the source value.
References
AEGLs (Table 1) and chemical information (Table 1-2) retrieved from: https://www.epa.gov/aegl/ethyl-mercaptan-results-aegl-program