ISO 9001:2015
| Product Name: | POTASSIUM METABISULFITE | Catalogue Number: | GR-28019-FOOD |
| Batch Size: | 2000KG | Lot Number: | 20230902 |
| CAS Number: | 16731-55-8 | Production Date: | |
| Molecular Formula: | K2O5S2 | Report Date: | 2023-08-31 |
| Molecular Weight: | 222.33 | Expiry Date: | |
| Storage: | Room temperature, Protected from light and Sealed |
| Test Items | Specifieation | Results |
| Appearance | White crystal powder | Conforms |
| K2S2O5 | ≥97.0% | 97.8% |
| SO2 | ≥56.0% | 56.3% |
| K2S2O3 | <0.1% | 0.002% |
| Na | ≦2.0% | 0.07% |
| Cl | ≤0.05% | 0.01 |
| Heavy metals | ≦10 ppm | 6 ppm |
| As | ≦1 ppm | 0.04 ppm |
| Cu | ≦1 ppm | 0.3 ppm |
| Fe | ≦5 ppm | 2.5 ppm |
| Hg | ≦0.1 ppm | 0.03 ppm |
| Pb | ≦1 ppm | 0.4 ppm |
| Se | ≦1 ppm | 0.1 ppm |
| Zn | ≦1 ppm | 0.3 ppm |
| pH(10% solution) | 3.8-4.8 | 4.2 |
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Prepared by: |
Reviewed by: |
Aproved by General manager: |
| Date: | Date: | Date: |
