Uses of Sodium metabisulfite

Food industry:

Sodium metabisulfite is commonly used as a food preservative to prevent the growth of bacteria and fungi, and to extend the shelf life of food products such as wine, beer, and dried fruits.

Water treatment:

Sodium metabisulfite is used in water treatment plants to remove chlorine and chloramine from water, which can be harmful to aquatic life.

Photography industry:

Sodium metabisulfite is used in photographic processing as a reducing agent to remove excess silver from photographic films and papers.

Textile industry:

Sodium metabisulfite is used as a bleaching agent in the textile industry to remove impurities from fabrics and to whiten them.

Chemical industry:

Sodium metabisulfite is used as a reducing agent in the chemical industry to reduce the oxidation state of certain compounds, and in the production of some medications, such as acetaminophen.