... 3.07% 3) Total Magnesium (as MgCl2) Our main chemical, calcium chloride, is mainly used in snow and ice melting, dryer ... water treatment, cement additive, oil drilling, food additives, construction, manufacturing, tire weighting and mining industries. calcium chloride 77% min1.Size: 0.3 ... %4) Other Impurities, max: 0.008%5) Calcium Hydroxide, max: 0.10%6) Calcium Carbonate, max: 0.008%7) Sulfate (as SO4 ...