Appearance white crystalline powder
Assay (arg.) ≥ 99.5 %
Heavy metals (as Pb) ≤ 0.0005 %
Insoluble matter in H2O ≤ 0.003 %
pH (5 %; H2O; 20°C) 6.0 - 9.2 6.6
Reducing substances of I2 (as I) ≤ 0.001 %
Loss on drying (150°C) ≤ 0.2 %
Chloride and bromide (as Cl) ≤0.01 %
Iodate ≤0.0003 %
Nitrogen compounds (as N) ≤0.001 %
Phosphate ≤0.001 %
Sulfate ≤0.0025 %
Ag ≤0.0005 % Cd ≤0.0005 % In ≤0.0005 % Si ≤0.0005 %
Al ≤0.0005 % Co ≤0.0005 % Mg ≤0.0005 % Sn ≤0.0005 %
As ≤0.00001 % Cr ≤0.0005 % Mn ≤0.0005 % Sr ≤0.0005 %
Au ≤0.0005 % Cu ≤0.0005 % Mo ≤0.0005 % Ti ≤0.0005 %
B ≤0.0005 % Fe ≤0.0002 % Na ≤0.005 % Tl ≤0.0005 %
Ba ≤0.001 % Ga ≤0.0005 % Ni ≤0.0005 % V ≤0.0005 %
Be ≤0.0005 % Ge ≤0.0005 % Pb ≤0.0005 % Zn ≤0.0005 %
Ca ≤0.001 % Hg ≤0.0005 % Pt ≤0.0005 % Zr ≤0.0005 %