PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Trimethylchlorosilane 75-77-4 1298
14.01
14.02
11.01
8.00
4.07
Formula Synonyms
C3H9ClSi TRIMETHYLCHLOROSILANE, CHLOROTRIMETHYLSILANE, CHLOROTRIMETHYLSILICANE, KA 31, MONOCHLOROTRIMETHYLSILANE, MONOCHLOROTRIMETHYLSILICON, SILANE, CHLOROTRIMETHYL-, SILANE, TRIMETHYLCHLORO-, SILICANE, CHLOROTRIMETHYL, SILYLIUM, TRIMETHYL-, CHLORIDE, TL 1163, TRIMETHYL CHLOROSILANE, TRIMÉTHYLCHLOROSILANE (DOT FRENCH), TRIMETHYLSILANE CHLORIDE, TRIMETHYLSILICON CHLORIDE, TRIMETHYLSILYL CHLORIDE, TRIMETILCLOROSILANO (DOT SPANISH), TSL 8031, UN 1298
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
108.66 L -40 57 0.854 18000
PAC Values
PAC Values (Original Units: ppm)
PAC-1 PAC-2 PAC-3
1.8 22 100
Converted PAC Values (mg/m3)
PAC-1 PAC-2 PAC-3
8.0 98 440
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 3-1, per handbook 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. Differences in the reported TEEL-1 and TEEL-2 values in units mg/m3 may be due to conversion and rounding of these values, instead of use of source values.
References
AEGLs (Table 3-1) and chemical information (Table A-25) retrieved from: https://www.epa.gov/aegl/trimethylchlorosilane-results-aegl-program
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PAC values marked with a subscript "A" correspond to 60-minute AEGL values.
PAC values marked with a subscript "E" correspond to ERPG values.
PAC values marked by * are >= 10% lower explosive limit (LEL) but < 50% LEL.
PAC values marked by ** are > 50% LEL but < 100% LEL.
PAC values marked by *** are >= LEL.