Uses of Potassium Metabisulphite

Analytical Chemistry:

It is used as a reagent for the determination of certain metals, such as chromium, through titration methods.

Preservation:

Similar to its food preservation role, it is used in laboratories to preserve samples susceptible to oxidation or microbial degradation.

Reduction Agent:

It serves as a reducing agent in various chemical reactions, particularly in organic synthesis and in the preparation of certain compounds.

Antioxidant:

Potassium metabisulfite is used to prevent oxidation in certain reactions where oxygen sensitivity is a concern.

Disinfectant:

In microbiology and biological laboratories, it can be used as a disinfectant for equipment and surfaces.