Calcium Chloride Anhydrate Content% 94Min Magnesium & alkali metal chloride% 2.5max Water-insoluble Matter% 0.1max Sulphate% 0.1max Alkalinity% 0.2max Calcium Chloride Dihydrate Content% 74 min Magnesium & alkali metal chloride% 2.5max Water-insoluble Matter% 0.1max Sulphate% 0.1max Alkalinity% 0.2max