Potassium Metabisulphite also named as potassium pyrosulfite, is physically available in the form of white crystalline powder. It has applications in many chemical and textile industries. It is an oxidant used to precipitate gold from solutions. Textile industries use this salt for its dyeing and printing properties. Due to its composition of photographic solutions, potassium metabisulphite is utilized in photographic fixing. It also works as preservative in pickles, bleaching agents in coconut creams or cosmetic products.