Sodium trichloroacetate
Agent Name
Sodium trichloroacetate
Alternative Name
Trichloroacetic acid sodium salt
CAS Number
650-51-1
Formula
C2-H-Cl3-O2.Na
Major Category
Metals
Synonyms
Trichloroacetic acid sodium salt; ACP grass killer; Allied Arcadian Sodium TCA; Antiperz; Antyperz; Dow sodium TCA inhibited; Green cross couch grass killer; Natriumtrichlooracetaat [Dutch]; Natriumtrichloracetat [German]; STCA; Sodio(tricloroacetato di) [Italian]; Sodium (trichloracetate de) [French]; Sodium TCA; Sodium TCA inhibited; Sodium trichloroacetate; Sodium trichloroacetic acid; TCA sodium; TCA-sodium [ISO]; Trichloressigsaures natrium [German]; Trichloroacetic acid sodium salt; Trichloroctan sodny [Czech]; Varitox; Weedmaster grass killer; [ChemIDplus]
Category
Organic Acids, Metal Salts
Description
Yellow deliquescent solid; [Merck Index] White to yellow hygroscopic solid; [ICSC] Off-white granules; [MSDSonline]
Sources/Uses
Used as selective pre-emergence herbicide to control annual and perennial grasses in various food crops, cotton, and non-crop areas; as dyeing auxiliary; No longer registered with the EPA for use as pesticide in the US, cancelled; [HSDB]
Comments
A skin, eye, and respiratory tract irritant; [ICSC] A strong nose and throat irritant; [HSDB] A respiratory tract irritant; [eChemPortal: ESIS] An irritant; [MSDSonline] The ACGIH profile is for Trichloroacetic acid (76-03-9) and the sodium salt (650-51-1). See "Trichloroacetic acid."
Biomedical References
Exposure Assessment
MAK
2 mg/m3, inhalable fraction
Vapor Pressure
2.6E-08 mm Hg
Lethal Concentration
LC50 (rat) > 365,000 mg/m3/4h
Adverse Effects
ACGIH Carcinogen
Confirmed Animal
Diseases, Processes, and Activities Linked to This Agent
Processes
Industrial Processes with risk of exposure: