Potassium Meta Bisulphite
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Technical characteristics
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Description
Potassium metabisulfite, K2S2O5, also known aspotassium pyrosulfite, is a whitecrystallinepowder with a pungentsulfurodour. The main use for the chemical is as anantioxidantorchemical sterilant. It is adisulfiteand is chemically very similar tosodium metabisulfite, with which it is sometimes used interchangeably. Potassium metabisulfite is generally preferred out of the two as it does not contributesodium to the diet.
Potassium metabisulfite has a monoclinic crystal structure which decomposes at 190 °C, yielding potassium oxide and sulfur dioxide:
K2S2O5(s) → K2O(s) + 2SO2(g)Contact the seller
Potassium Meta Bisulphite
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