7692. Potassium Thiosulfate

Nomenclature

CAS number: 10294-66-3
Potassium hyposulfite.
K2O3S2; mol wt 190.32.
K 41.09%, O 25.22%, S 33.70%.
K2S2O3.

Properties

Colorless, hygroscopic crystals. Sol in water. Insol in alcohol. May crystallize with 0.33 to 1.5 mol H2O. Keep well closed.