... for years 3,Calcium chloride ( CaCl2 ) content94% Anhydrous calcium chloride: ( Calcium chloride anhydrous ), white cubic crystal ... Ca (OH) 2 ],ωof -------------------------------------------------------≤ 0.25Total alkali metal chloride ( NaCl),ωof -----------------------------------------≤ 5Water insoluble,ωof ----------------------------------------------------------------------≤ 0.3Iron ( ...