Sodium Sulphate Anhydrous
| Appearance | A white crystalline powder |
|---|---|
| Assay (Titration after lon exchange) | Min 99% |
| Insoluble Matter | Max 0.01% |
| pH (5% solution in water; 25C) | 5.2 - 9.2 |
| Chloride (Cl) | Max 0.001% |
| Phosphate (PO4) | Max 0.001% |
| Nitrogen compounds (as N) | Max 0.0005% |
| Heavy metals (by ICP-OES) | Max 0.0005% |
| Iron (Fe) | Max 0.001% |
| Calcium (Ca) | Max 0.01% |
| Potassium (K) | Max 0.01% |
| Magnesium (Mg) | Max 0.005% |
| Loss on ignition (at 800C) | Max 0.5% |