Test item
Specification
Reagent grade
Pharmaceutical grade
Appearance
Conform
Assay /%
≥99.0
Clarify degrees test
Water insoluble /%
≤0.005
≤0.01
Chloride (Cl)/%
≤0.0005
≤0.001
Sodium (Na)/%
≤0.05
Calcium (Ca) /%
≤0.02
Manganese (Mn)/%
Ferric (Fe)/%
Arsenic (As) /%
≤0.0001
≤0.0002
Zinc (Zn)/%
≤0.002
Heavy metal (Pb)/%
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