Sodium Sulfite

Sodium sulfite is an inorganic compound with the chemical formula Na2SO3. It is a white crystalline powder with a slight sulfurous odor and is highly soluble in water. Sodium sulfite is a reducing agent and can undergo oxidation-reduction reactions.

Uses:

Sodium sulfite has various applications in different industries. It is primarily used as a preservative, antioxidant, and reducing agent. It is also used in the production of paper, pulp, and photographic chemicals.

Industrial Applications:

Sodium sulfite is widely used in the food industry as a preservative for dried fruits, vegetables, and meat products. It is also used in the beverage industry to prevent oxidation and discoloration. In the chemical industry, it is used as a reducing agent in the production of sulfur dyes and other chemicals. In the paper and pulp industry, it is used to prevent the degradation of cellulose during the bleaching process.

Safety and Handling:

Sodium sulfite is a skin and eye irritant and can cause respiratory problems if inhaled. It is also a strong reducing agent and can react with oxidizing agents to produce heat and potentially hazardous gases. Proper protective equipment, such as gloves and goggles, should be worn while handling sodium sulfite. It should be stored in a cool, dry, and well-ventilated area away from incompatible materials.

Un number:

The UN number for sodium sulfite is UN 1384.