Agent Name

Potassium thiosulfate

CAS Number

10294-66-3

Formula

H2-O3-S2.2K

Major Category

Other Classes

Synonyms

Potassium thiosulphate; Thiosulfuric acid (H2S2O3), dipotassium salt; Thiosulfuric acid (H2S2O3), potassium salt (1:2); Potassium thiosulfate solution; [ChemIDplus] Potassium hyposulfite; [Merck Index] Dipotassium thiosulfate; [ToxPlanet: ECHA REACH Registrations]

Category

Sulfur Compounds

Description

Colorless hygroscopic solid; [Merck Index] White crystalline solid; [Sigma-Aldrich MSDS]

Sources/Uses

Used in photographic developing; [REPROTOX] Used to make fertilizers, large scale and fine chemicals, computer-electronic-optical products, and in the health services industry; [ExPub: ECHA REACH Registrations]

Comments

A skin and strong eye irritant; [Sigma-Aldrich MSDS] See "Sodium thiosulfate."

Links to Other NLM Databases
Toxicity Information

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Chemical Information

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Related Information in HazMap
Processes

Industrial Processes with risk of exposure: