Minimum assay (Acidim.) calc. a.d.s.............................................. 99,0 %

MAX. IMPURITIES

Insoluble matter in H2O................................................................... 0,01 %

Loss on drying at 300°C................................................................... 1,0 %

Nitrogen compounds (as N)......................................................... 0,001 %

Sulphur compounds (as SO4)......................................................... 0,01 %

Chloride (Cl).................................................................................. 0,005 %

Phosphate (PO4)........................................................................... 0,002 %

Silicate (as SiO2)............................................................................. 0,01 %

Heavy metals (as Pb).................................................................... 0,001 %

Al.................................................................................................. 0,002 %

As............................................................................................... 0,0002 %

Ca................................................................................................. 0,005 %

Cu................................................................................................. 0,001 %

Fe.................................................................................................. 0,001 %

Mg................................................................................................ 0,005 %

Na..................................................................................................... 0,3 %

Ni.................................................................................................. 0,001 %

Pb................................................................................................. 0,001 %