| Item | Value |
| De-Equivalent | 99.5% min |
| Appearance | White crystal or powder, odorless and a little sweat |
| Melting Point | 146°C (294.8°F) |
| Boiling point | decomposes |
| Specific Gravity | 1.562 (Water = 1) |
| Acidity (ml) | 1.2 max |
| Chloride% | 0.02 max |
| Sulphate% | 0.02 max |
| Iron% | 0.002 max |
| Heavy metal% | 0.002 max |
| Arsenic% | 0.0002 max |
