... % min Flake 1) CaCl2: 77-80% 2) Total Alkali Salts (as NaCl), max: 3.07% 3) Total Magnesium (as MgCl2) Our ... main chemical, calcium chloride, is mainly used in snow and ice melting, dryer, antifreeze, dust control ... (as NaCl), max: 3.07%3) Total Magnesium (as MgCl2), max: 0.017%4) Other Impurities, max: 0.008% ... 74%, pellet 74% 77% 94%. calcium chloride 77% min Flake