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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.
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.
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 THIOSULPHATE (PENTAHYDRATE) PURE manufacturer and supplier.
