| CAS No.: | 7681-57-4 |
|---|---|
| Formula: | Na2o5s2 |
| EINECS: | 231-673-0 |
| Certification: | ISO |
| Purity: | ≥99% |
| Type: | Sodium Sulfate |
| Samples: |
|---|
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Audited Supplier Factory Directly Provide Sodium Metabisulfite CAS 7681-57-4
Sodium metabisulfite appears as a white crystalline or powder solid with a slight sulfur odor. Toxic by inhalation. Strongly irritates skin and tissue. A corrosive acid when mixed with water. Used as a food preservative and as a laboratory reagent.
| Test Iterms | Specification | Test Result |
| Purity(As Na2S2O5) ; %≥ | 97% | 97.3 |
| Iron(As Fe); % ≤ | 0.003 | 0.002 |
| Arseni c; mg/kg ≤ | 5.0 | <5.0 |
| Heavy Metal(As Pb); mg/kg ≤ | 1.0 | <1.0 |
| Water insoluble matter | 0.05 | 0.02 |
25kg/bag or 1000kg/bag
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