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Sodium Bisulfite Powder NaHSO3 - Food Preservative E222, Water Dechlorinator, and Industrial Reducing Agent
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Sodium Bisulfite Powder NaHSO3 - Food Preservative E222, Water Dechlorinator, and Industrial Reducing Agent
| MOQ: | 10Tons |
| Price: | Please contact customer service |
| Standard Packaging: | Bagged and ton bags |
| Delivery Period: | About six weeks |
| Payment Method: | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Supply Capacity: | 100,000 tons per year |
Detail Information
Place of Origin
China
Brand Name
SiChun HongJian
Model Number
Sodium Hydrogen Sulfite
Document
Chemical Formula:
NaHSO3
Highlight:
Food Preservative Sodium Bisulfite
,Water Dechlorinator NaHSO3
,Reducing Agent E222
Product Description
Sodium Bisulfite Powder - Food Preservative E222, Water Dechlorinator, Reducing Agent for Industry
Sodium bisulfite (chemical formula NaHSO₃) is a vital sulfite compound available as white or slightly yellowish crystalline powder or granules. Characterized by a pungent sulfur dioxide odor, strong reducing properties, and its role as a sulfur dioxide (SO₂) carrier, this versatile chemical serves as an efficient reducing agent, preservative, and dechlorinating agent across multiple industries including food processing, water treatment, chemical synthesis, textile dyeing, and photography.
Core Applications & Industry Uses
Food Industry Applications
Food-grade sodium bisulfite (E222) complies with international standards (GB 1886.12, FCC) and serves multiple functions:
- Anti-Browning Agent: Prevents enzymatic and non-enzymatic browning in dried fruits, vegetables, potato products, juices, and wines
- Preservative: Inhibits growth of molds, yeasts, and bacteria to extend shelf life
- Bleaching Agent: Decolorizes and bleaches starch and sugar products
- Widely used in winemaking and sugar refining processes
Water Treatment & Environmental Protection
Essential for water purification and environmental applications:
- Dechlorination & Deoxygenation: Primary residual chlorine/oxygen scavenger in RO system pretreatment
- Protects reverse osmosis membranes from oxidative damage
- Wastewater Treatment: Reduces toxic hexavalent chromium to less harmful trivalent chromium for removal
- Neutralizes excess chlorine in industrial wastewater
Industrial & Chemical Production
Versatile reducing agent across multiple manufacturing sectors:
- Textile Industry: Discharging agent, reducing agent, and antichlor for fabric bleaching and dyeing
- Leather Tanning: Used in depilation and post-tanning reduction processes
- Paper Manufacturing: Dechlorination after pulp bleaching and as reducing agent
- Chemical Synthesis: Reducing and sulfonating agent for organic synthesis including hydroxylamine and Vitamin C production
- Photography: Additive in traditional darkroom fixing baths
Specialized Applications
- Pharmaceutical intermediate for drug synthesis
- Mineral flotation as depressant or activator
- Small-scale flue gas desulfurization applications
Product Specifications & Quality
Available in two grades: Food Grade (FCC/GB compliant) and Industrial Grade. Our sodium bisulfite features:
- High purity with strong reducing power
- Excellent solubility and stable SO₂ content
- Food-grade products ensure minimal heavy metals and arsenic
- Standard 25kg bags with custom packaging options available
Important Safety Information
Sodium bisulfite rapidly releases toxic sulfur dioxide gas when contacting strong acids. Must be stored separately from acids and handled in well-ventilated areas. We supply only to qualified clients with proper safety protocols and provide complete Material Safety Data Sheets (MSDS) and operating guidelines.
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