It is used as a preservative and antioxidant in food. It is used as a cleaning agent for potable water desalination systems and used to remove chloramine from drinking water after treatment.
|Molar Weight||190.095 g/mol|
|Melting Point||170 °C|
|Specific Gravity||1.310 – 1.370 g/cc|
Synonyms: Disodium Pyrosulfite, E 223, SMBS, Sodium Bisulfite Anhydrous, Sodium Disulfite, Sodium Hydrogen Sulfite, Sodium Pyrosulfite
Chemical Formula: Na2S2O5
CAS Number: 7681-57-4