English
Assay (manganometric): ≥ 98.0 %
Sulfate (SO₄): ≤ 0.01 %
Total nitrogen (N): ≤ 0.001 %
As (Arsenic): ≤ 0.0005 %
Cu (Copper): ≤ 0.002 %
Mn (Manganese): ≤ 0.005 %
Pb (Lead): ≤ 0.001 %
Zn (Zinc): ≤ 0.003 %
Substances not precipitated by ammonia (as sulfates): ≤ 0.05 %
