Potassium metabisulfite

Potassium metabisulfite or Potassium metabisulphite is a chemical compound that belongs to the sulphite group, sulphur-based components that release sulphur dioxide SO2, an active preservative compound, a white granular powder. The name defines the structure of the molecule "Potassium" is an alkali metal, symbol K, with atomic number 19. It's an...