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

pH of 5% solution........................................................................ 9,5-10,7

MAX. IMPURITIES

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

Carbonate............................................................................................. p/t.

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

Nitrate (NO3).................................................................................. 0,003 %

Sulphate (SO4).............................................................................. 0,005 %

As............................................................................................... 0,0003 %

Ca................................................................................................... 0,01 %

Cu............................................................................................... 0,0005 %

Fe................................................................................................ 0,0005 %

Mg.................................................................................................. 0,01 %

Ni................................................................................................ 0,0005 %

Pb............................................................................................... 0,0005 %