| ITEM | SPECIFICATIONS |
| Characters | White crystalline powder |
| Purity (on dry base) % | 98.0-102.0 |
| Acidity (PH) | 4.0-7.0 |
| Melting point (°C) | 96-99 |
| Sulfate (SO42-) | =<300 ppm |
| Residue on Ignition (%) | =<0.10 |
| Completeness of solution | Clear and transparent |
| Organic volatile impurities | =<0.5 |
| Loss on Drying (%) | =<0.5 |