PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Methyltrichlorosilane; (Trichloromethyl silane) | 75-79-6 | 1250 |
14.01
4.01
11.01
14.02
4.08
4.05
7.01
11.00
4.10
4.07
|
|||||||||
| Formula | Synonyms | |||||||||||
| CH3Cl3Si | METHYLTRICHLOROSILANE, METHYLSILICON TRICHLORIDE, METHYLSILYL TRICHLORIDE, MÉTHYLTRICHLOROSILANE (DOT FRENCH), METILTRICLOROSILANO (DOT SPANISH), SILANE, METHYLTRICHLORO-, SILANE, TRICHLOROMETHYL-, TRICHLOROMETHYLSILANE, TRICHLOROMETHYLSILICON | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 149.48 | L | -90 | 65.6 | 75 | 7 | 1.273 @ 20°C | 76000 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.60 | 7.3 | 33 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 3.7 | 45 | 200 |
Technical Basis
A review of available sources identified AEGLs for this chemical. The AEGLs were selected due to their priority among Protective Action Criteria (Section 1).
• PAC-1 = AEGL-1
• PAC-2 = AEGL-2
• PAC-3 = AEGL-3
This review generated PAC values consistent with Rev. 29A*.
• PAC-1 = AEGL-1
• PAC-2 = AEGL-2
• PAC-3 = AEGL-3
This review generated PAC values consistent with Rev. 29A*.
References
AEGLs (Table 3-1) and chemical information (Table A-15) retrieved from https://www.epa.gov/aegl/trichloromethyl-silane-results-aegl-program