PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Ethyl methylphosphonic acid; (EMPA; VX acid; Ethyl methyl phosphonate; Ethyl methyl phosphonic acid) 1832-53-7
14.01
15.02
Formula Synonyms
C3.H9.O3.P
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
124.07606 L 1.172
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
10 110 1600
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
2.0 22 320
Technical Basis
No technical basis available
References
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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.