Items

Specification  

  Result  

Assay

≥99.70%

99.8%

Non-sludging to hydrochloric acid

≤0.03%

0.02%

Non-sludging to Nitric acid

≤0.02%

0.02%

nitrate

≤0.001%

N/D

water insoluble

≤0.02%

0.02%

Fe

≤0.001%

0.0008%

Cu

≤0.002%

0.001%

                       Pb

≤0.002%

0.002%

Ni

≤0.002%

0.001%

Zn

≤0.001%

0.001%