PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Trimethylacetyl chloride; (Pivaloyl chloride) 3282-30-2 2438
14.02
14.01
11.01
4.07
Formula Synonyms
C5.H9.Cl.O TRIMETHYLACETYL CHLORIDE, 1,1-DIMETHYLETHANECARBONYL CHLORIDE, 2,2-DIMETHYLPROPANOYL CHLORIDE, 2,2-DIMETHYLPROPIONIC ACID CHLORIDE, 2,2-DIMETHYLPROPIONYL CHLORIDE, CHLORURE DE TRIMÉTHYLACÉTYLE (DOT FRENCH), CLORURO DE TRIMETILACETILO (DOT SPANISH), NEOPENTANOYL CHLORIDE, PIVALIC ACID CHLORIDE, PIVALOLYL CHLORIDE, PIVALOYL CHLORIDE, PIVALYL CHLORIDE, TERT-BUTYL CHLORO KETONE, TERT-BUTYLCARBONYL CHLORIDE
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
120.59 L 107 1.003 @ 20°C
PAC Values
PAC Values (Original Units: ppm)
PAC-1 PAC-2 PAC-3
0.015 0.16 0.47
Converted PAC Values (mg/m3)
PAC-1 PAC-2 PAC-3
0.074 0.79 2.3
Technical Basis
A review of available sources identified an AEGL-2 and AEGL-3 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, a TEEL-1 is not recommended; it was therefore derived according to Table 3.5. Values in units mg/m3 are reported as published in the technical support table 7-5, per handbook guidance (Section 3.4.7.2).
• TEEL-1 = TEEL-2/11
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL ppm values consistent with Rev. 29A. The difference in the reported TEEL-2 value in units mg/m3 may be due to conversion and rounding of the value, instead of use of the source value.
References
AEGLs (Table 7-5) and chemical information (Table 7-2) retrieved from: https://www.epa.gov/aegl/trimethylacetyl-chloride-results-aegl-program
Search Again
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.