Minimum assay (Acidim.)............................................................... 99,0 %

pH of 5% solution.......................................................................... 8,5-9,6

MAX. IMPURITIES

Insoluble matter in H2O................................................................. 0,005 %

Loss on drying at 105°C................................................................... 1,0 %

Nitrogen compounds (as N)......................................................... 0,002 %

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

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

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

As............................................................................................... 0,0001 %

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

Cd................................................................................................. 0,001 %

Co................................................................................................. 0,001 %

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

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

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

Mn................................................................................................ 0,001 %

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

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

Zn................................................................................................. 0,001 %