Molecular Formula: Na2S2O5
Used in industries such as dyeing, organic synthesis, printing, leather processing, and pharmaceuticals. In food processing, it is used as a preservative, bleaching agent, and leavening agent.
| Item | Specification |
|---|---|
| Appearance | White or slight yellow crystalline powder |
| Sodium metabisulfite | ≥96 |
| Iron content | ≤0.005% |
| pH value | 4.0-4.6 |
| Moisture and volatiles | ≤0.05% |
Woven bag: net weight 50 kg/bag or 1000 kg/bag.
Protect from moisture, water, and sunlight. Keep away from heat and fire.
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