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Sodium thiosulfate pentahydrate is a hydrate consisting of sodium thiosulfate with 5 mol eq. of water. It has a role as an antidote to cyanide poisoning, a nephroprotective agent and an antifungal drug. It contains a sodium thiosulfate.
Sodium thiosulfate is used in gold mining, water treatment, analytical chemistry, the development of silver-based photographic film and prints, and medicine. The medical uses of sodium thiosulfate include treatment of cyanide poisoning and pityriasis.
Sodium thiosulfate (sodium thiosulphate) is an inorganic White crystalline solid compound. Also called Sodium thiosulfate pentahydrate, Disodium thiosulfate pentahydrate.
Also used as General bleaching agents, bleaching agents for textiles. And effectively used for cleaning/washing, including cleaning products used in the home, laundry detergents, soaps, de-greasers, spot removers, drycleaning, laundry, soap, window/floor cleaning etc.
Reported as not meeting GHS hazard criteria.
The invention provides a process for producing sodium thiosulfate. The process includes steps of adding sodium carbonate into a dissolving kettle, adding water into the dissolving kettle and primarily stirring the sodium carbonate and the water to obtain materials; heating the primarily stirred materials and secondarily stirring the materials; filling the dissolving kettle with sulfur dioxide gas after the materials are secondarily stirred, and slowly stirring the materials; filling the slowly stirred materials with nitrogen to dispel gas; transferring the materials into a reaction kettle after the gas is dispelled, inputting sulfur dioxide gas into the reaction kettle and filling the reaction kettle with the sulfur dioxide gas; adding sulfur into the reaction kettle and carrying out boiling reaction; cooling the reacted materials, filtering the materials and concentrating and crystallizing filtered liquid.