Sodium sulfite is a chemical compound with the formula Na2SO3. It is a white crystalline solid that is soluble in water and has a slightly sulfurous odor. Sodium sulfite is commonly used in various industrial applications. It is used as a preservative in the food industry to prevent the growth of bacteria and mold. It is also used in the production of paper and in water treatment plants to remove excess chlorine from water. In addition, sodium sulfite is used in the photographic industry as a developing agent to process black and white film. It is also used as a reducing agent in the preparation of certain types of dyes and pharmaceuticals. Sodium sulfite can be hazardous if ingested or inhaled in large quantities. It can cause irritation to the eyes, skin, and respiratory tract. Therefore, appropriate safety measures should be taken when handling this chemical.
