Purity: ≥99.0%
Heavy metal: ≤0.0010% Iron: ≤0.0010% Manganese: ≤ 0.0001%
Chloride and Chlorate: ≤ 0.005% Ammonium salt: ≤ 0.05% Active oxygen: ≥6.65%
Moisture: ≤ 0.05%