Function of Sodium Metabisulfite

Sodium metabisulfite is a chemical compound widely used in various industries due to its versatile properties. Its main functions include:

• Preservative: It inhibits the growth of bacteria and fungi, making it useful in food preservation, especially for dried fruits, wines, and juices.
• Antioxidant: It prevents oxidation in food and beverages, thereby maintaining color and flavor.
• Disinfectant: It is used for sterilization and cleaning purposes, including sanitizing equipment in breweries and wineries.
• Reducing Agent: It helps in chemical processes that require a reduction step, often used in water treatment to remove chlorine.
• Bleaching Agent: It is applied to bleach wool, jute, and other natural fibers in the textile industry.

Overall, sodium metabisulfite serves as an important additive and processing aid in food, beverage, water treatment, and industrial applications.