Potassium Meta Bi Sulphite, K2S2O5, also known as potassium pyrosulfite, is a white crystalline powder with a pungent sulfur odor. The main use for the chemical is as an antioxidant or chemical sterilant. It is a disulfite and is chemically very similar to Sodium Meta Bi Sulphite, with which it is sometimes used interchangeably. Potassium Meta Bi Sulphite is generally preferred out of the two as it does not contribute sodium to the dipotassium Meta Bi Sulphite is used as a photographic chemical, pharmaceutical chemical, laboratory reagent and in dyes. These are light cream colored material, free from foreign particles with the sulfur dioxide gas. Our range is known for effectiveness, precise ph value and accurate composition.
Potassium sorbate is a food grade preservative generally regarded as safe worldwide. It is the inactive salt of sorbic acid. It readily dissolves in water where it converts to sorbic acid, its active form, at a low pH. Sorbic acid is very pH dependent. While it shows some activity up to pH 6 (about 6%), it is most active at pH 4.4 (70%). At pH 5.0 it is 37% active. As sorbic acid, it is considered to be active against mold, fair against yeast and poor against most bacteria. Sorbic acid is an unsaturated fatty acid and as such is subject to oxidation.