High Purity Sodium Bisulfite Food Grade 25kg Bulk Supply

• Customization: Available
• CAS No.: 7631-90-5
• Formula: Nahso3
• Model NO.: Sodium Bisulfite
• EINECS: 231-548-0
• Color: White
• Appearance: Powder
• Molecular Weight: 104.061
• Melting Point: 150 ºC
• Density: 1.48 G/Cm³
• Un Code: 2693
• Transport Package: 25kg
• Specification: 25kg/bag
• Trademark: China
• Origin: China
• Production Capacity: 100000ton/Year

Product Description

Property	Description
Chemical Name	Sodium Bisulfite
CAS Number	7631-90-5
Molecular Formula	NaHSO3
Molecular Weight	104.06 g/mol
Appearance	White crystalline solid or powder
Odor	Slight sulfur dioxide odor
Melting Point	150°C
Density	1.48 g/cm³
Solubility in Water	Soluble (300 g/L at room temperature)
Solubility in Organic Solvents	Slightly soluble in alcohol
Stability	Stable; incompatible with strong oxidizing agents and acids
Storage Conditions	Store in a cool, dry place
Synonyms	Sodium Hydrogen Sulfite, Sodium Acid Sulfite
Kind	Inorganic sodium salt
HS Code	28321000

1. Food Industry
   • Preservative: Sodium bisulfite is used as a food preservative to prevent oxidation and spoilage. It is commonly added to dried fruits, wine, and other food products to maintain freshness and extend shelf life.
   • Bleaching Agent: It is used in the bleaching of food products, such as sugar and flour, to improve their appearance.
2. Pharmaceuticals
   • Antioxidant: Sodium bisulfite is used as an antioxidant in pharmaceutical formulations to prevent degradation of active ingredients.
   • Disinfectant: It is used in the preparation of disinfectants and antiseptics.
3. Water Treatment
   • Dechlorination: Sodium bisulfite is used to remove chlorine from water, making it suitable for industrial processes and aquariums.
   • Oxygen Scavenger: It is used to remove dissolved oxygen from boiler water, preventing corrosion.
4. Textile Industry
   • Bleaching and Dyeing: Sodium bisulfite is used in the bleaching and dyeing processes of textiles to control pH and improve dye uptake.
   • Desizing: It helps in the removal of sizing agents from fabrics during the finishing process.
5. Paper and Pulp Industry
   • Bleaching Agent: Sodium bisulfite is used in the bleaching of pulp to improve the brightness and whiteness of paper products.
   • Dechlorination: It is used to remove chlorine from water used in paper production, reducing environmental impact.
6. Chemical Synthesis
   • Reducing Agent: Sodium bisulfite is used as a reducing agent in various chemical reactions, particularly in the synthesis of organic compounds.
   • pH Adjuster: It is used to adjust the pH in chemical processes, providing a controlled acidic environment.
7. Other Applications
   • Photography: Sodium bisulfite is used in photographic developing solutions to control the pH and prevent oxidation.
   • Agriculture: It is used in the treatment of water for irrigation to remove chlorine and other harmful chemicals.