Sodium thiosulfate CAS 7772-98-7

CAS: 7772-98-7
Purity: 99%
Molecular formula: Na2O3S2
Molecular weight: 158.11
EINECS: 231-867-5

Synonyms: DECHLORINATING SOLUTION; HYPO; ‘HYPO’; BETZ 0235; ANTICHLOR; SODIUM HYPOSULFITE; SODIUM THIOSULFATE; SODIUM THIOSULFATE, 2.00 N

What is Sodium thiosulfate CAS 7772-98-7? Sodium thiosulfate CAS 7772-98-7 is a commonly used chemical material, as the fixing agent in photography, film and printing plate-making industry, as a reducing agent used in tanning. It is used as a bleaching agent for removing residual and a mordant in the paper and textile industries, as antidotes of cyanide poisoning in medicine, as dechlorination agent and fungicides of drinking water and wastewater in water treatment, as a copper corrosion inhibitor of circulating cooling water and a deoxidizer of boiler water systems.

Description

Items	Specification
Na2S2O3·5H2O	99.0%MIN
Water-insoluble	0.03%MAX
Sulphide(as Na2S)	0.003%MAX
Iron (as Fe )	0.003%MAX

Application

Sodium thiosulfate CAS 7772-98-7 is a sequestrant, antioxidant, and formulation aid that is a powder soluble in water. it can be used in alcoholic bev- erages at 5 ppm and in table salt at 0.1%. it is also termed sodium hyposulfite.