Sodium Metabisulfite
| Sodium Metabisulfite | Q/S |
| Sodium Metabisulfite ( Na2S2O5) content,% | ≥98.5 |
| Iron (Fe) content,% | ≤0.0007 |
| Water Insoluble Matter content,% | ≤0.002 |
| Heavy Metal Content (calculated as Pb),% | ≤0.0005 |
| Arsenic content (calculated as As),% | ≤0.0001 |
| Clarity | clear |
| PH Value | 4.0~4.6 |
Next product： Sodium Sulfite