Sodium metabisulfite (CAS 7681-57-4)

Name: Sodium metabisulfite (CAS 7681-57-4)
SKU: 10570
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Sodium metabisulfite (CAS 7681-57-4)

Sodium metabisulfite or sodium pyrosulfite (IUPAC spelling; Br. E. sodium metabisulphite or sodium pyrosulphite) is an inorganic compound of chemical formula Na2S2O5. The substance is sometimes referred to as disodium metabisulfite. It is used as a disinfectant, antioxidant, and preservative agent.

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Description
Additional information

Product Description

Information

Industries: Adhesives, oils, greases, Food industry
CAS number: 7681-57-4
WE number: 231-673-0
Index number: 016-063-00-2
Chemical formula: Na2O5S2
Molar mass: 190,1 g/mol
Customs tariff code: 28321000

Physical properties
pH: 3,5 – 5,0 (50g/l H2O w 20°C )
Melting / freezing point: 150°C