Contact Us

Mobile : +91-9825043369, +91-9825019205

Phone : +91-2676-247227

Fax : +91-2676-247355

Call Us : 08045133460


Sodium Metabisulphite

Sodium metabisulphite, also called sodium pyrosulfite or disodium, is an inorganic compound composed of sodium, sulfur and oxygen. Its chemical formula is na2s2o5. It typically comes in a white or yellowish-white crystalline powder. It easily dissolves in water. The substance is sometimes referred to as disodium (metabisulphite). It is used as a disinfectant,antioxidant and preservative agent. Industrial uses many chemical properties of sodium metabisulphite or sodium pyrosulfite make it a versatile compound useful in many applications. It can eliminate dissolved oxygen in waste water and in pipes. It functions as a bleaching agent, which is useful in making paper pulp, cotton and wool. It is used in water treatment plants to remove excess chlorine. In beer and wine manufacturing, sodium metabisulfite or sodium pyrosulfite checmicals are often used to sterilize the equipment.


Formula Na2S2O5
Molecular Weight 190.10
Assay as (Na2S2O5) 95 % Min
Assay as (SO2) 64 % Min
Solubility (10 % Aquous Soln) V. S. Hazy to clear solution
pH Value of 5% Solution 3.5 to 4.5
Description: White crystalline powder, free from extraneous Matter with a faint odour of sulphur dioxide gas.

Additional Information

Product Code SMBS
Min. Order Quantity 500 Kilogram
Payment Terms L/C
Packaging Details 25 kg. HDPE Bag
50 kg. HDPE Bag

*Special packaging requirements can be accommodated.