Diethyl hydrogen phosphite
Agent Name
Diethyl hydrogen phosphite
CAS Number
762-04-9
Formula
C4-H11-O3-P
Major Category
Other Classes
Synonyms
Diethoxyphosphine oxide; Diethyl acid phosphite; Diethyl phosphite; Diethyl phosphonate; Diethylfosfit [Czech]; Ethyl phosphonate ((EtO)2HPO); Hydrogen diethyl phosphite; O,O-Diethyl phosphonate; Phosphonic acid diethyl ester; Phosphorous acid, diethyl ester; [ChemIDplus] UN1993
Category
Phosphite Compounds
Description
Water-white liquid; [Hawley] Clear colorless liquid; May decompose on exposure to moisture; [MSDSonline]
Sources/Uses
Used as a paint solvent, reducing agent, phosphorylating agent, textile finishing agent, antioxidant, additive for adhesives and extreme pressure lubricants, and intermediate for flame-retardants, insecticides, and other organic phosphorus compounds; Scheduled 3B precursor to VG, sarin, soman, and GF; [HSDB]
Comments
A skin, eye, and respiratory tract irritant; [Alfa Aesar MSDS]
Biomedical References
Exposure Assessment
Vapor Pressure
11.2 mm Hg
Explanatory Notes
The Guide in the Emergency Response Guidebook is for "Combustible liquid, n.o.s." VP from ChemIDplus;
Diseases, Processes, and Activities Linked to This Agent
Processes
Industrial Processes with risk of exposure: