PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Ammonium, tetramethyl-, bromide; (Tetramethylammonium bromide) 64-20-0
7.01
7.00
8.00
15.01
15.02
11.01
4.07



Formula Synonyms
C4.H12.Br.N
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
154.08 S hygr. 1.5
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
0.15 1.7 9.9
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
0.024 0.27 1.6
Technical Basis
A review of available sources rat and mouse acute toxicity data (LD50) for several routes. Data sources were selected according to the hierarchy listed in Table 3.1. Toxicity data were selected according to type of exposure, species, and route according to the hierarchies stated in Sections 3.3.1, 3.3.2, and evaluated using factors in Tables 3.2, 3.3, and 3.4. The most preferred route and species toxicity data, a rat oral LD50, was selected as the TEEL-3 basis. TEEL-2 and TEEL-1 values were derived according to Table 3.5.
• TEEL-1 = TEEL-2/11
• TEEL-2 = TEEL-3/6
• TEEL-3 = Rat oral LD50 (50 mg/kg)
This review generated TEEL values consistent with Rev 29A values.
References
National Technical Information Service., OTS054094. Retrieved from https://pubchem.ncbi.nlm.nih.gov/compound/Tetramethylammonium-bromide
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