Sodium bisulfite is an inorganic sodium salt and a sulfite salt.Sodium bisulfite appears as white crystals or crystalline powder. Slight sulfurous odor.
Sodium bisulfite is a chemical mixture with the approximate chemical formula NaHSO3. Sodium bisulfite in fact is not a real compound,but a mixture of salts that dissolve in water to give solutions comIt contains a hydrogensulfite.