Sodium thiosulphate is the neutral salt of thiosulphuric acid.

Anhydrous salt in the configuration of a microcrystalline powder with an active agent content of at least 99% Na2S2O3;

Special mention should be given to the following from the wide range of applications of sodium thiosulphate:
• usage in photographic chemicals for producing fixing baths;
• removal of halogens from waste water and waste gas and from bleached textiles, paper and cellulose;
• raw material in the chemical industry;
• as an ingredient for chrome tanning in the dual bath process for the production of special leather types;
• in the cosmetic industry;
• usage as a laboratory chemical.