Agent Name

Sodium chlorate

CAS Number




Major Category

Other Classes


Agrosan; Asex; Atlacide; B-Herbatox; Chlorate de sodium [ISO-French]; Chlorate salt of sodium; Chloric acid, sodium salt; Chlorsaure [German]; De-Fol-Ate; Defol; Dervan; Desolet; Drexel defol; Drop-Leaf; Evau-Super; Fall; Grain sorghum harvest-aid; Granex O; Harvest-aid; Hibar C; KM; Kusa-tohru; Kusatol; Leafex 2; Leafex 3; Natrium chloraat [Dutch]; Natrium chlorat [German]; Natriumchloraat [Dutch]; Natriumchlorat [German]; Ortho C-1 defoliant & weed killer; Ortho-C-1-Defoliant; Oxycil; Rasikal; Shed-A-Leaf "L"; Shed-A-leaf; Soda chlorate; Sodakem; Sodio (clorato di) [Italian]; Sodium (chlorate de) [French]; Sodium chlorate [ISO]; Sodium(chlorate de) [French]; Travex; Tumbleaf; Tumbleleaf; United Chemical Defoliant No. 1; VAL-DROP; Weed Killer; [ChemIDplus] UN1495; UN2428 (aqeous solution)


Other Inorganic Compounds


Colorless or white odorless solid; [Merck Index] Slightly hygroscopic; [CHEMINFO] Colorless or light yellow granules; [MSDSonline]


Used as oxidizing agent and bleach for wood and paper pulps; in ore processing (uranium and vanadium); as herbicide, defoliant, desiccant, semi-permanent soil sterilant, and harvest aid; in matches, explosives, flares, and pyrotechnics; to recover bromine from natural brines; for leather tanning and finishing; as textile mordant and bleaching agent; to make perchlorates, potassium chlorate, chloric acid, and chlorine dioxide; as oxidizer in making dyes, rocket propellants, and pharmaceuticals; in toothpastes and mouthwashes; as a sweetening agent in oil refineries; [HSDB] Used in metal etching and oxygen generation in rescue breathing apparatus; [CHEMINFO]


A strong oxidant and fire hazard on contact with organic substances; [Hawley] A fire and explosion hazard on contact with combustible and reducing materials; A skin, eye, and respiratory tract irritant; Can induce methemoglobinemia; May cause kidney injury; [ICSC] A skin, eye, and upper respiratory tract irritant; Ingestion of toxic doses can cause hemolysis, methemoglobinemia, cyanosis, acute renal failure, and liver injury; [HSDB] A strong oxidizing agent that reacts explosively with organic materials; An eye irritant; Ingestion can cause respiratory failure and injury to kidneys and liver; [CAMEO] Can cause combustion or explosion on contact with combustible or flammable substances; Ingestion may cause methemoglobinemia and kidney injury; [CHEMINFO] An eye and mild skin irritant; May cause skin sensitization; [eChemPortal: ERMA] An oxidizing agent; May cause explosion on contact with combustible material; An irritant; Can induce methemoglobinemia; [MSDSonline] See "CHLORATES."

Reference Link

EPA Pesticide Chemical Search

Exposure Assessment
Lethal Concentration

LC50 (rat) > 7,000 mg/m3/4h

Adverse Effects

Anemia, Hemolytic


Hepatotoxin, Secondary




Methemoglobinemia, Secondary

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information


Chemical Information

Search ChemIDplus

Related Information in HazMap

Industrial Processes with risk of exposure: