Assay (Perm.)....................................................................................99 %

Insoluble matter in H2O................................................................... 0,02 %

Residue on ignition (as SO4)............................................................. 0,1 %

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

Phosphate (PO4)............................................................................. 0,01 %

Nitrate (NO3).................................................................................. 0,005 %

Sulphate (SO4)................................................................................ 0,01 %

As............................................................................................. 0,00005 %

Cu................................................................................................. 0,002 %

Fe.................................................................................................. 0,002 %

Ni.................................................................................................. 0,002 %

Pb................................................................................................. 0,002 %