|
Loss on drying
|
≤2.0%
|
0.19%
|
|
Heavy metals
|
≤10 ppm
|
<10ppm
|
|
Water
|
≤1.0%
|
0.1%
|
|
Sulphated ash
|
≤0.5% determined on 1.0 g.
|
0.009%
|
|
Residue on ignition
|
≤0.1%
|
0.03%
|
|
Related Substances
|
Unspecified impurities: for each impurity ≤0.10%
|
<0.10%
|
|
Total Impurity ≤0.5%
|
0.18%
|
|
|
Purity
|
≥99.0%
|
99.7%
|
|
Assay
|
99.0%~101.0% (anhydrous substance).
|
99.8%
|
|
Storage
|
Preserve in well-closed, light-resistant and airtight containers.
|
Complie
|