Test item |
Specification |
|
Reagent grade |
Pharmaceutical grade |
|
Appearance |
Conform |
Conform |
Assay /% |
>= 99.0-101.0 |
>= 98.0-101.0 |
Water insoluble /% |
<= 0.005 |
<= 0.02 |
Chloride (Cl)/% |
<=0.001 |
<= 0.005 |
N/% |
<= 0.001 |
|
Phosphate (PO4)/% |
<= 0.0005 |
<= 0.002 |
Arsenic (As)/% |
<= 0.0002 |
<= 0.0002 |
Manganese (Mn)/% |
<= 0.05 |
|
Ferric (Fe)/% |
<= 0.02 |
<= 0.10 |
Copper (Cu)/% |
<= 0.002 |
<= 0.01 |
Zinc (Zn)/% |
<= 0.005 |
<= 0.02 |
Lead (Pb)/% |
<= 0.002 |
<= 0.005 |
Ammonia not sediment /% |
<= 0.05 |
<= 0.2 |