Specifications | |
---|---|
Assay (perchloric acid titration) | ≥ 99.7 % |
Identity (IR-spectrum) | passes test |
pH (50 g/l CO₂-free water) | 5.9 - 6.3 |
Chloride (Cl) | ≤ 0.003 % |
Sulphate (SO₄) | ≤ 0.0025 % |
Heavy metals (as Pb) | ≤ 0.001 % |
Cu (Copper) | ≤ 0.0001 % |
Fe (Iron) | ≤ 0.0001 % |
Pb (Lead) | ≤ 0.0001 % |
NH₄ (Ammonium) | ≤ 0.02 % |
Foreign amino acids | ≤ 0.1 % |
Other ninhydrine positive substances | ≤ 0.1 % |
In water insoluble matter | ≤ 0.003 % |
Sulfated ash (600 °C) | ≤ 0.05 % |