Sodium sulfite: reducing agent and preservative; Sodium thiosulfate: photographic fixer and medical antidote.
7757-83-7 / 7772-98-7
28321010 / 28323010
Powder
Na2SO3 / Na2S2O3
126.04 / 158.11 g/mol
Oxidizes easily; sensitive to moisture and sunlight
Provides technical and food grades with guaranteed low iron content; dual packaging for pharma & dechlorination uses.
Water Treatment: Oxygen scavenger. Photography: Fixing agent (thiosulfate). Textile: Bleaching. Food Industry: Preservative. Medical: Cyanide poisoning antidote (thiosulfate).
