Sodium Thiosulfate, Pentahydrate

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Sodium Thiosulfate, Pentahydrate, Reagent, ACS Sodium Hyposulfite Na2S2O3•5H2O
F.W. 248.19
Synonyms: Sodium hyposulfite; Hyporice; sodium subsulfite; HYPO; antichlor; Thiosulfuric acid, disodium salt; Thiosulfuric acid (H2S2O3), disodium salt; Grade: Technical Uses: Photography; chrome tanning; extraction of silver from its ores; removing chlorine in bleaching and paper making; dechlorination of water; reagent; bleaching; reducing agent in chrome dyeing.

Additional Description

Uses: iodometry,
making colloidal sulfur,
Fixing agent in photography,
Chrome tanning,
Removing Chlorine in bleaching and paper making,
extraction of silver,
Dechlorination of water,
mordant; reagent; bleaching
Purity > 99%
Appearance White crystals
Iron < 10 ppm
Heavy metals < 6 ppm
Insoluble matter < 0.02%