Molecular Formula: Na2S2O5
CAS No.: 7681-57-4
EINECS: 231-673-0
Purity: 96.5%min
Appearance: White crystalline powder
Production Capacity: 180,000mt
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Molecular Formula: Na2S2O5
CAS No.: 7681-57-4
EINECS: 231-673-0
Purity: 96.5%min
Appearance: White crystalline powder
Production Capacity: 180,000mt
Sodium metabisulfite (Na2S2O5), is an inorganic compound, white or yellow crystals, with a strong irritating odor, soluble in water, the aqueous solution is acidic, and contact with strong acids will release sulfur dioxide and generate the corresponding salts. If left in the air for a long time, it will be oxidized into sodium sulfate, so sodium metabisulfite cannot be stored for a long time.
| Project | Target | Test Result |
|
Content (Na2S2O5) |
96.5%Min | 97.26% |
| SO2 | 65.0% Min | 65.65% |
| Iron（Fe） | 0.003%Max | 0.001% |
| As | 0.0001% Max | <0.0001% |
| Water Insoluble Matter | 0.05% Max | 0.01% |
|
Heavy Metals (As PB) |
0.0005% Max | <0.0002% |
| PH Value | 4.4-4.8 | 4.5 |