8656. Sodium Persulfate

Nomenclature

CAS number: 7775-27-1
Sodium peroxydisulfate.
Na2O8S2; mol wt 238.10.
Na 19.31%, O 53.76%, S 26.93%.
Na2S2O8.

Description and references

Toxicity data: DaVal, Arch. Ital. Sci. Farmacol. 2, 445 (1933).

Properties

White, cryst powder. Oxidizer. Gradually dec; decompn is promoted by moisture and higher temp. Initial soly in water at 20°: 549 g/l; dec by alcohol and silver ions. MLD in rabbits (mg/kg): 178 i.v. (DaVal).

Caution

Highly irritating to skin, mucous membranes.

Use

Bleaching and oxidizing agent; promoter for emulsion polymerization reactions.