Assay: 97 to 103% as CaCl2.2H2O Di-hydrate
Arsenic: 0.0003% max. <3 ppm
Lead (Pb): 0.001% max. <10 ppm
Heavy Metal as (Pb): 0.0003% max. <3 ppm.
Magnesium/Alkali: 1% max. (Typically in ppm.)
Clarity of 10% Soln.: Clear & Colourless
Free Acid or Alkali: 0.005% max & pH 4.5-9; 0.2ml of 0.01M HCl/NaOH to 10ml of 10%