Potassium Metabisulfite is accessible in colorless crystalline or white crystalline form. It has sulfur dioxide like smell. It readily dilutes in water and is insoluble in C2H5OH. Its density is 2.34g/cm3. Melting point of Potassium Metabisulfite is 190 degree C. It decomposes at 150 degree C temperature. Its molar mass is 222.312 g/mol. Standard of this chemical product has been verified on the basis of its shelf life, composition, chemical stability, possible toxin content etc. We offer this chemical at reasonable price.