Use calcium chloride anhydrous is industry and the laboratory commonly used, but cannot be used to dry desiccant ethanol and ammonia production alcohol, ether and ester, when used as  dehydrant acrylic resin.
 
Inorganic industry used to make metal calcium, barium chloride, all kinds of calcium salt (such as calcium phosphate, etc.) of raw material. Building industry used as antifreeze to speed up the construction of the hardened and increase chillness-tolerance of mortar. Analytical chemistry,  used for testing the carbon content of steel, whole blood serum inorganic phosphorous dissolved, grapes and serum alkaline phosphatase vigor, etc.
Used for aluminum and magnesium metallurgy of protectant, refining agent. In addition, is also used for spinning thing fire agent,  harbour WuJi, pavement away dust collection agent and food preservatives, etc. Is the production  unit of color pigment precipitation agent. Used for waste paper deinking processing. Calcium chloride solution is important in refrigeration industry of coolant.