Sodium Sulfite (Technical Grade) is a widely used inorganic reducing agent known for its excellent oxygen-scavenging and chemical stability properties. It appears as a white crystalline powder or prism crystal, highly soluble in water and forming an alkaline solution.
Due to its strong reducing capability, sodium sulfite plays an essential role in various industrial processes including water treatment, chemical manufacturing, textile processing, and photography.
🔹 Key Features
- Strong reducing agent with high reactivity
- Excellent oxygen scavenger for industrial systems
- Good water solubility and fast reaction performance
- Stable under normal conditions but easily oxidized in air
- Cost-effective chemical for large-scale industrial applications
🔹 Applications
1. Water Treatment Industry
- Used as a deoxidizer in boiler water systems
- Applied in oilfield injection water treatment
2. Chemical Industry
- Raw material for producing sodium thiosulfate
- Used in synthesis of chemical intermediates
- Reducing agent in dyes, fragrances, and adhesives
3. Textile Industry
- Bleaching agent component
- Dechlorination and deoxidizing agent
4. Paper Industry
- Used for lignin removal in pulp processing
5. Photography & Electronics
- Developer and film protection agent
- Used in photoresist manufacturing
6. Analytical & Laboratory Use
- Reducing agent in chemical analysis
- Base solution in polarographic analysis
7. Environmental Applications
- Treatment of chromium-containing wastewater
- Chemical reduction in silver extraction processes
Product Quality:
| national standard(HG/T2967-2010) | |
| project name | Project Name: Excellent Product |
| Sodium sulfite (Na2SO3) content w/% ≥ | 97.0 |
| Iron (Fe) content w/% | 0.003 |
| Water insoluble content w/% ≤ | 0.02 |
| Free alkali(Na2CO3)w/% | 0.10 |
| Sulfate(Na₂SO4)w/% ≤ | 2.5 |
| Sodium chloride(NaCl)w/% ≤ | 0.10 |
