Sodium Metabisulfite Uses

Sodium metabisulfite is a white crystalline powder with the chemical formula Na2S2O5. It is commonly used as a food preservative, antioxidant, and disinfectant. In the food industry, sodium metabisulfite is often added to various products such as canned foods, wine, beer, and dried fruits to prevent spoilage and oxidation.

Sodium metabisulfite can also be used in water treatment as a reducing agent to remove chlorine and other oxidizing agents. Additionally, it is used in the pharmaceutical industry as a reducing agent and in the pulp and paper industry as a bleaching agent.

However, it is important to note that sodium metabisulfite can cause allergic reactions in some individuals. Additionally, it can release sulfur dioxide gas when exposed to moisture, which can be harmful if inhaled in large quantities. Therefore, proper safety precautions should be taken when handling and using sodium metabisulfite.