Content(as CaCl2.2H2O):99.0% min
Sulphate(as SO4):0.02% max
Free acid(HCl):0.005% max
Free alkali(as CaO):0.005% max
Iron( as Fe):0.002% max
Heavy metal(as Pb):0.002% max
Arsenic(As):0.0002%max
PH(5% water solution):6.0-7.0
Appearance:White crystal powder