PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Diethyl methylphosphonate; (DEMP) 683-08-9
15.01
11.01
15.02
Formula Synonyms
C5H13O3P
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
152.15 194 1.04 @ 30°C
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
7.3 81 480
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
1.2 13 77
Technical Basis
A review of limited sources identified mouse intraperitoneal LD50 toxicity data that was selected as the TEEL-3 basis and evaluated using factors in Tables 3.2, 3.3, and 3.4. TEEL-1 and TEEL-2 values were derived according to Table 3.5.
• PAC-1 = TEEL-1 = TEEL-2/11
• PAC-2 = TEEL-2 = TEEL-3/6
• PAC-3 = TEEL-3 = Mouse intraperitoneal LD50 (2240 mg/kg)
This review generated PAC values consistent with Rev. 29A*.
References
Mouse intraperitoneal LD50: Farmakologiya i Toksikologiya, 10(121), 1975. Retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/Diethyl-methylphosphonate
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.