Sodium Metabisulfite is a versatile chemical compound commonly used in food and beverage production as a preservative and antioxidant. With a concentration of 98%, it effectively inhibits bacterial growth, prevents discoloration, and extends product shelf life.
Other Names: Sodium pyrosulfite, Sodium disulfite
CAS Number: 7681-57-4
Chemical Formula: Na₂S₂O₅
Average Molar Mass: 190.10 g/mol
Density: Approximately 1.48 g/cm³
Appearance: White or yellowish crystalline powder
Odor: Sulfur dioxide-like odor
Applications and Uses:
Widely used as a preservative in the food and beverage industry to prevent spoilage and browning.
Applied as a reducing agent in various chemical processes, including water treatment and pulp bleaching.
Utilized in the production of photographic chemicals for fixing solutions.
Functions as an antioxidant in the pharmaceutical and cosmetic industries.
Essential in winemaking and brewing to inhibit the growth of unwanted microorganisms.
Storage and Handling Guidelines:
Store in a cool, dry place away from incompatible materials.
Keep containers tightly closed to prevent moisture absorption.
Protect from exposure to air and humidity.
Implement measures to avoid spills and leaks.
Handle with care, as sodium metabisulfite can release sulfur dioxide, which can be irritating.
Use appropriate personal protective equipment (PPE), including gloves and eye protection.
Avoid contact with skin and eyes. In case of contact, rinse thoroughly with water.
Store away from strong acids and incompatible substances.
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