| ITEM |
STANDARD |
| Appearance |
White crystalline powder |
| Purity (on dry base)% |
98.0-104.0 |
| PH value(0.1%water liquor) |
9.5-10.5 |
| Sulfate(ppm) |
=<300 |
| Chlorides(ppm) |
=<350 |
| Loss on drying % |
=<0.50 |
| Organic volatile impurities |
Meets BP2000/usp24 STANDARD |
| Completeness of solution |
Meets Bp2000/usp24 STANDARD |
| Heavy metals (Pb)ppm |
=<10.0 |
| Apprearance of solution |
Clear and transparent |
| ITEM |
STANDARD |
| Appearance |
White crystalline powder |
| Purity (on dry base)% |
99-100.5 |
| Melting point °C |
69-72 |
| Sulphated ash % |
=<0.05 |
| Acidity (mlNaOH0.1M) |
=<0.1 |
| Loss on drying % |
=<0.5 |
| Residue % |
=<0.10 |
| Arsenic (ppm) |
=<1.0 |
| Heavy metals (Pb)ppm |
=<10 |
| Mercury (mg/kg) |
<1 |
| lead (mg/kg) |
<5 |
| Clarity and color of solution |
Clear and transparent |
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