Sodium Metabisulfite (also called Sodium Pyrosulfite, CAS No.:7681-57-4), molecular formula Na2S2O5, is a widely used inorganic sulfite raw material.
JINAN SPARK IMP & EXP CO.,LTD. supplies two grades: Food Grade Sodium Metabisulfite and Industrial Grade Sodium Metabisulfite. It appears as white crystalline powder, freely soluble in water with weakly acidic aqueous solution.
With powerful reduction, bleaching, anti-oxidation and preservative properties, SMBS is an essential material for food processing, textile printing & dyeing, wastewater treatment, mineral flotation and fine chemical industries worldwide.