Agent Name

Trimethyl borate

CAS Number

121-43-7

Formula

C3-H9-B-O3

Major Category

Metals

Synonyms

Borester O; Boric acid (H3BO3), trimethyl ester; Boric acid, trimethyl ester; Methyl borate; Trimethoxyborane; Trimethoxyborine; Trimethoxyboron; Trimethylester kyseliny borite [Czech]; UN2416; [ChemIDplus]

Category

Metalloid Compounds (Boron)

Description

Colorless liquid; [ICSC]

Sources/Uses

Used as a flame retardant, welding and brazing flux, chemical intermediate, fungicide, and a solvent for waxes, resins, and oils; [HSDB]

Comments

A skin and eye irritant; Inhalation may cause cough and sore throat; [ICSC] Chronic poisoning in grazing animals where soil is high in boric acid results in vomiting, diarrhea, shock, convulsions, and paralysis; Post-mortem findings include inflammation of the GI tract, liver and kidney damage, and cerebral edema; [HSDB]

Exposure Assessment
Vapor Pressure

137 mm Hg

Adverse Effects
Neurotoxin

Other CNS Neurotoxin

Hepatotoxin

Hepatotoxin, Secondary

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: