English
Assay (complexometric): ≥ 98.0 %
pH-value (5 %; water): 4.0 - 6.0
Chloride (Cl): ≤ 0.005 %
Sulfate (SO₄): ≤ 0.02 %
Heavy metals (as Pb): ≤ 0.002 %
Fe (Iron): ≤ 0.001 %
NH₄ (Ammonium): ≤ 0.005 %
Substances not precipitated by ammonium oxalate (as sulfate): ≤ 0.3 %
