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Potassium Metabisulphite

POTASSIUM METABISULPHITE (Potassium pyrosulphate, Dipotassium disulphate) is a common wine or must additive, in which it forms sulphur dioxide. Potassium metabisulfite is sometimes used in the brewing industry to inhibit the growth of wild bacteria and fungi. This step is called ‘stabilizing’. It is also used to neutralize monochloramine from tap water.  It is used in the textile industry for dyeing and cotton printing, component of certain photographic developers and solutions used in photographic fixing.  It is offered in Technical and Industrial Grade.  It is available in the form of white powder packed in 25kg, 50kg HDPE Bag. We can offer it in many grades as per the application needs in different industry sectors.


Product Name Potassium Metabisulphite
Appearance White
Assay 98%
Also known as Potassium pyrosulphate                                                 Dipotassium disulphate
CAS No 16731-55-8
Density 2.34 g/cm3
Grade Standard Industrial, Technical
Molecular Formula K2O5S2
Molecular Weight 222.31 g·mol−1
Minimum  Order Quantity 25kg
Physical State Powder
Packing Type 25kg,50kg HDPE Bag
Usage Food, Brewing, Dyeing and cotton printing, Photographic