Sodium Thiosulfate

Sodium thiosulfate is a widely used sodium-based compound valued for its reducing, dechlorinating, and stabilizing properties. In water treatment, it is commonly applied to neutralize chlorine and chloramine in municipal water systems, aquariums, and swimming pools, ensuring safe and balanced water quality. In chemical manufacturing, it serves as a reagent in analytical chemistry and plays a critical role as a photographic fixer, where it removes unreacted silver halides to stabilize developed images.

Its versatility extends to multiple industries, including mining, where sodium thiosulfate is used in alternative gold extraction processes, and textiles, where it assists in bleaching and dyeing operations. In healthcare, it is recognized as an antidote for cyanide poisoning and is also used in dermatology and other pharmaceutical applications. Additionally, it finds use in detergents and specialty cleaning products, where its reducing properties improve performance. With its broad functionality, cost-effectiveness, and reliability, sodium thiosulfate remains an essential raw material across water treatment, healthcare, mining, textiles, and specialty chemical markets.

Synonyms: Sodium thiosulfate, Na₂S₂O₃, hypo

Characteristics:

IUPAC Name: Disodium thiosulfate

CAS Number: 7772-98-7

UN Number: N/A

Recommended Use / Industries:

• Photography fixer
• Medical (antidote for cyanide poisoning)
• Water dechlorination
• Gold extraction