PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Diethyl trichloromethylphosphonate 866-23-9
15.01
11.01
15.02
Formula Synonyms
C5.H10.Cl3.O3.P
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
255.47 L 1.362
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
2.4 26 160
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
0.23 2.5 15
Technical Basis
A review of available sources identified 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, a mouse intraperitoneal 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 = Mouse intraperitoneal LD50 (720 mg/kg)
This review generated TEEL values that are consistent with Rev. 29A*.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/Diethyl-_trichloromethyl_phosphonate.
Farmakologiya i Toksikologiya, 10(121), 1975. Retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/Diethyl-_trichloromethyl_phosphonate.
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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.