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]

Exposure Assessment
Vapor Pressure

11.2 mm Hg

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Combustible liquid, n.o.s."

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Related Information in HazMap
Processes

Industrial Processes with risk of exposure: