SODIUMTHIOSULFATE
Sodium thiosulfate
Sodium thiosulfate, also spelled sodium thiosulphate, is a colorless crystalline compound that is more familiar as the pentahydrate, Na2S2O3·5H2O, an efflorescent, monoclinic crystalline substance also called sodium hyposulfite or “hypo.”The above text is a snippet from Wikipedia: Sodium thiosulfate
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