Sodium Metabisulfite

Sodium metabisulfite is a versatile sodium-based compound widely recognized for its role as a reducing agent, preservative, and antioxidant across industrial and commercial applications. In water treatment, it is used to remove excess chlorine and other oxidizing agents, protecting downstream processes and equipment. In the food and beverage industry, it functions as a preservative and color stabilizer, extending shelf life and maintaining product quality.

In addition to these uses, sodium metabisulfite is employed in chemical manufacturing, detergents, pulp and paper production, and textile processing. It is also applied in mining operations for ore treatment and in photography as a component of developing solutions. With its combination of effectiveness, cost-efficiency, and versatility, sodium metabisulfite has become an essential material for both large-scale industrial operations and targeted specialty applications.

Synonyms: Sodium metabisulfite, Na₂S₂O₅, disodium metabisulfite

Characteristics:

IUPAC Name: N/A

CAS Number: 7681-57-4

UN Number: 1759

Recommended Use / Industries:

• Food preservative and antioxidant
• Wastewater treatment
• Pulp and paper bleaching
• Mining industry (cyanide detoxification)