| Customization: | Available |
|---|---|
| CAS No.: | CAS 7757-83-7 |
| Formula: | Na2so3 |
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| CAS NO. | 7757-83-7 | HS.CODE | 28321000 |
| EINECS NO. | 231-821-4 | Storage Condition | Store at +5°C to +30°C |
| APPEARANCE | Crystal powder | ||
| Odor | Strong Smell of Sulfur Dioxide | ||
| Solubility | Soluble in Water | ||
| Stability | Stable. Incompatible with strong acids | ||
| Sensitive | Moisture and Air Sensitive | ||
| Sodium Sulfite | |||
| Item | Priority | First Class | Qualified |
| Na2SO3 | ≥97.0% | ≥96.0% | ≥93.0% |
| Iron | ≤0.003% | ≤0.005% | ≤0.02% |
| Water Insoluble Matter | ≤0.02% | ≤0.03% | ≤0.05% |
| Free Alkali(sodium carbonate) | ≤0.1% | ≤0.4% | ≤0.8% |
| Na2SO4 | ≤2.5% | / | / |
| NaCl | ≤ 0.1% | / | / |
Used as bleaching agent, preservative, antioxidant, bacteria inhibitor
Bleaching Agent for cotton fabrics and organics
Reducing Agent in dyestuffs, papermaking, tanning, and chemical synthesis
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