Table of Contents
Product Specifications & Comparative Analysis
Essential Parameters
| Property | Specification |
|---|---|
| Chemical Formula | Na2S2O5 |
| Molecular Weight | 190.107 g/mol |
| CAS Registry | 7681-57-4 |
| Appearance | White/yellow crystalline powder |
| SO2 Content | ≥65% |
| Water Solubility | 540 g/L (20°C) |
| pH Value | 4.0-4.6 (1% solution) |
Grade Comparison
| Grade | Purity | Iron Content | Applications |
|---|---|---|---|
| Food Grade | ≥99% | ≤0.005% | Food preservation |
| Industrial Grade | ≥95% | ≤0.01% | Water treatment |
| Pharmaceutical Grade | ≥99.9% | ≤0.001% | API production |
Industrial Applications & Functional Advantages
Food Processing
- Antioxidant in baked goods (extends shelf life 30-40%)
- Color stabilizer in dried fruits (prevents enzymatic browning)
- Wine preservative (effective SO2 concentration: 50-100 ppm)
Water Treatment
- Chlorine neutralization (1kg treats 10m³ water)
- Oxygen scavenger in boiler systems
- Wastewater dechlorination (98% efficiency)
Pharmaceutical Manufacturing
- Intermediate in sulfonamide antibiotics
- Stabilizer in injectable solutions
- API purification agent
Operational Protocols & Safety Measures
Storage Requirements
- Maintain relative humidity <60%
- Storage temperature: 15-25°C
- Maximum stack height: 10 pallets
Processing Guidelines
- Use PPE (nitrile gloves, face shield)
- Implement gradual addition (max 2kg/min)
- Maintain solution pH 3.5-5.0
- Allow 15min dissolution time
Client Implementation Case Studies
Case 1: Jiangsu Food Co., Ltd.
- Application: Noodle preservation
- Result: 60-day shelf life extension
- Usage: 0.3g/kg flour mixture
Case 2: Guangdong Water Plant
- System: 50,000m³/day capacity
- Implementation: 0.5ppm dosage
- Outcome: 99.2% chlorine removal
Case 3: Zhejiang Pharmaceutical
- Process: Drug intermediate synthesis
- Yield Improvement: 12.7% increase
- Purity: 99.92% final product
Technical Consultation & Order Coordination
For formulation optimization or bulk purchasing:
Email: info@vivalr.com
Phone: (86) 15866781826



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