Disodium Pyrosulfite, E 223, SMBS, Sodium Bisulfite Anhydrous, Sodium Disulfite
Chemical Formula
Na2S2O5
HSN Code
28332210
CAS Number
7681-57-4
General Description
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.