The average cost of calcium chloride per ton is $130.00-200 and per lb is $0.35. Its chemical formula is CaCl2. Calcium chloride is a salt of calcium and chloride. It is a colorless, odorless and a nontoxic solution, used extensively in various industries and applications throughout the world. It is used in the packing of drying tubes and to increase the hardness in swimming pools. It should be stored in a cool, dry place in a tightly closed container.