1)White flakes,not impurity 2)Industrial Grade Calcium chloride dihydrateMolecular formula : CaCl2CAS:10035-04-8Melting Point : 176Boiling Point : 1600Density : 1.85 g/cm3 (20 C) Application:1.Used in highway, expressway, parking lot and port and as a dryer to dry nitrogen, oxygen, hydrogen, hydrogen chloride and sulfur dioxide etc.2. Act as dehydration agent when producing alcohol, ester, ether ...