Agent Name

Tris(2-chloroethyl) phosphite

CAS Number

140-08-9

Formula

C6-H12-Cl3-O3-P

Major Category

Other Classes

Synonyms

2-Chloroethanol phosphite (3:1); Ethanol, 2-chloro-, phosphite (3:1); Phosphorous acid, tris(2-chloroethyl) ester; Tris(2-chloroethyl)ester of phosphorous acid; Tris(2-chloroethyl)phosphite; Tris(beta-chloroethyl) phosphite; Ethanol, 2-chloro-, 1,1',1''-phosphite; [ChemIDplus]

Category

Organophosphates, Other

Description

Colorless liquid; [HSDB]

Sources/Uses

Used in vinyl stabilizers, grease additives, and fire-retardant compositions; Also used as a color inhibitor in esterification reactions; [HSDB]

Comments

Oral LD50 (rat) = 131 mg/kg; (Effects include hypoactivity, weakness, dyspnea, and diarrhea; Skin LD50 (rabbit) = 810 mg/kg; [HSDB] A strong reducing agent; Decomposed by water; Unstable in presence of heat, moisture, and prolonged air exposure; A skin, eye, and mucous membrane irritant; Can be absorbed through skin; [CAMEO] May decompose on exposure to water or moist air; An irritant; [MSDSonline]

Exposure Assessment
Vapor Pressure

0.0003 mm Hg

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Health Studies

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