| Specifications |
| Confirms to BP/USP |
|
| Assay (HClO4 titration) |
99 - 100.5% |
| pH (5% water) |
7.5 - 9.0 |
| Appearance of solution |
Passes test |
| Insoluble matter in water |
Max 0.025% |
| Acidity or alkalinity |
Passes test |
| Chloride (Cl) |
Max 0.005% |
| Oxalate (C2O4) |
Max 0.03% |
| Sulphate (SO4) |
Max 0.01% |
| Tartarate |
Passes test |
| Heavy metals (as Pb) |
Max 0.001% |
| Arsenic (As) |
Max 0.0001% |
| Mercury (Hg) |
Max 0.0001% |
| Lead (Pb) |
Max 0.001% |
| Sodium (Na) |
Max 0.3% |
| Copper (Cu) |
Max 0.002% |
| Zinc (Zn) |
Max 0.002% |
| Reaction against H2SO4 |
Passes test |
| Readily carbonisable substance |
Passes test |
| Water |
4 - 7% |
| Loss on drying (at 130 deg C) |
3 - 6 |
|
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