Canada Chemical is one of the leading Sodium thiosulfate manufacturers, exporters, and suppliers in Vancouver, Montreal ,Quebec, Ontario, Toronto, Hamilton, Ottawa Canada. We are supplied to various industrial markets including Household, Institutional Cleaning, Personal Care, and Industrial sectors including Oil fields, chemical, Animal feed additive, Food additive, Agrochemical, Fertilizer, pharmaceuticals, water treatment, Minerals, Lubricants, Marine Industry, Metal Working chemical industry, and Coatings markets.

Potassium metabisulfite, K2S2O5, also known as potassium pyrosulfite, is a white crystalline powder with a pungent odour. It is mainly used as an antioxidant or chemical sterilant. As a disulfite, it is chemically very similar to sodium metabisulfite, with which it is sometimes used interchangeably. Potassium metabisulfite has a monoclinic crystal structure.

Potassium Metabisulfite was used for the preparation of photographic developing solution, which was also used as food bleaching agents, preservatives, antioxidants .In addition, it could be used to retain freshness of wine, fruit juice, beer clarifying agent, fruits and vegetables, meat , grapes, as well as the non-cyanide silver plating.

1.Potassium Metabisulphite 
2.CAS:16731-55-8
3.Appearance:White crystalline powder
4.Assay:98%min

Other names

Potassium pyrosulfite
Dipotassium disulfite
Potassium metabisulphite
Dipotassium disulphite

Other uses
Potassium metabisulfite is sometimes added to lemon juice as a preservative.

Potassium metabisulfite is used in the textile industry for dyeing and cotton printing.

Potassium metabisulfite is sometimes used to precipitate gold from solution in aqua regia (as an alternative to sodium sulfite).

It is a component of certain photographic developers and solutions used in photographic fixing.

It is used as a bleaching agent in the production of coconut cream.
It is used in some pickles as a preservative.
It is used in tint etching iron-based metal samples for microstructural analysis.
It is used in Aam papad as a preservative.

Application:

2. Used as analytical reagent. It is also used as a developing agent, reducing agent and bacterial inhibitor.

3. Potassium metabisulfite is used as an additive in thiosulfate silver plating, and its sodium salt is also used in the treatment of chromium-containing wastewater.

(1) Food Grade: Bleach agent (e.g. candies, cake, bamboo shoots, etc); Loose agent (e.g. bread, cracker etc); Antiseptic and germicide (e.g. fruit juice, tinned food, brews, the cereals food is defended storage etc); Inhibitor and freshen agent (e.g. day lily, seafood, fruit and vegetable etc).

Product use

    Used as chromatographic reagent, developer, reducing agent and bacterial inhibitor.

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