Test Item | Reagent grade | Pharmaceutical grade |
Appearance | Conform | Conform |
Assay( NaCl) % | 99.5 | 99.5 |
pH | - | Conform |
Clarify degree test | Conform | Conform |
Aqueous reaction | Conform | Conform |
Br/ % | - | ≤0.01 |
Phosphate( PO4) % | ≤0.001 | ≤0.0025 |
Sulfate(SO4) % | ≤0.002 | ≤0.002 |
Nitrite(NO2)% | - | Conform |
(As) % | ≤0.00005 | ≤0.00004 |
Iodine(I) % | ≤0.002 | conform |
Calcium(Ca)% | ≤0.005 | conform |
Heavy metals% | ≤0.0005 | ≤0.0002 |
Ferrous cyanide % | ≤0.0001 | conform |
Water insoluble % | ≤0.005 | - |