CAS 7757-83-7 Sodium sulfite | Products & Prices & Suppliers

Sodium sulfite, with the chemical formula Na2SO3, has the CAS number 7757-83-7. It appears as a white crystalline powder with no odor. Sodium sulfite is composed of two sodium ions (Na+) and one sulfite ion (SO3^2-). This compound is highly soluble in water. It is important to handle sodium sulfite with caution as it can cause irritation to the skin, eyes, and respiratory system. Ingestion or inhalation of sodium sulfite may cause nausea, vomiting, and difficulty breathing. It is also important to avoid exposure to high temperatures, as sodium sulfite may decompose and release toxic fumes. Sodium sulfite is primarily used as a reducing agent and preservative in various industries. It is commonly used in the food and beverage industry to prevent oxidation and maintain the color and flavor of products. Sodium sulfite is also used in water treatment processes to remove excess chlorine and as a bleaching agent in the textile industry.

Applicable Fields

Water Treatment: Sodium sulfite is used as a chelating agent in water treatment processes. Its mechanism of action involves the ability to bind with metal ions, such as iron and manganese, preventing their precipitation and improving water quality.

Food and Beverage Industry: Sodium sulfite is widely used as a preservative in the food and beverage industry. Its purpose in this field is to inhibit the growth of bacteria and fungi, extending the shelf life of products. The mechanism of action involves the ability of sodium sulfite to inhibit the enzymes necessary for microbial growth.

Storage

Conditions: Store in a cool and dry place.