Sodium Metabisulfite Dry (Sodium Disulfite) Food Grade, HmbG (500g) CAS No 7681-57-4

Sodium metabisulphite is used as an antioxidant agent in many pharmaceutical formulations. It is extensively used as a food preservative and disinfectant.

1. Formula: Na2S2O5 

2. Molar mass: 190.10g/mol

3. CAS No: 7681-57-4

4. Assay: 99.2%