pH of aqueous suspension................................................................ 9-10

MAX. IMPURITIES

Loss on ignition...................................................................................8 %

Adsorption power................................................................................. p/t.

Soluble matter in water.................................................................... 0,5 %

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

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

Cu................................................................................................. 0,005 %

Fe.................................................................................................. 0,005 %

Ni.................................................................................................. 0,005 %

Pb................................................................................................. 0,005 %