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Sodium Metabisulphite

Sodium pyrosulfite,sodium metabisulphite,sodium pyrosulphite
Production Information
PROPERTIES   &  USAGE
Properties   Usage
Chemical formula Na2S2O5, Na-O-(S=O)-O-(S=O)-O-Na Food additive
Molar mass 190.107 g/mol Sanitization and cleaning agent
Density 1.48 g/cm3 Other uses
Melting point 170 °C (338 °F; 443 K) decomposition begins at 150 °C