Sulfurous acid Sodium Salt

• CAT Number: R044867
• CAS Number: 7757-83-7
• Molecular Formula: Anhydrous:Na2SO3
• Molecular Weight: 126.04
• Purity: ≥95%
• Synonyms: Sulfurous Acid Disodium Salt; Anhydrous Sodium Sulfite; Disodium Sulfite; E 221; S-WAT; Sodium Sulfite; Sodium Sulfite Anhydrous
• Storage: Desiccate at RT
• IUPAC Name: disodium;sulfite
• InChI: InChI=1S/2Na.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2
• InChIKey: GEHJYWRUCIMESM-UHFFFAOYSA-L
• SMILES: [O-]S(=O)[O-].[Na+].[Na+]

Sulfurous acid sodium salt（Cat No.:R044867）, is a chemical compound known as sodium sulfite. It is a white, crystalline powder that is highly soluble in water and is commonly used in various industrial applications. Sodium sulfite is primarily used as a reducing agent, antioxidant, and preservative in the food and beverage industry to prevent browning and spoilage. It is also used in the photographic industry, water treatment, and as a component in certain chemical processes. Additionally, sodium sulfite may have applications in pharmaceuticals, textiles, and pulp and paper production due to its reducing and stabilizing properties.