... industrial gradeCalcium chloride, CaCl2, is a common salt. It behaves as a typical ionic halide, and is solid at room temperature. It has ... tightly-sealed containers. It is used to turn kelp into a solid. 4) Usage: Calcium Chloride 74%-77% Powder/Flakes/PrillsCalcium ... Used in highway, expressway, parking lot and port and as a dryer to dry nitrogen, oxygen, hydrogen, hydrogen chloride and sulfur ...