The main raw material of calcium chloride desiccant: Calcium chloride is made of high-quality calcium carbonate and hydrochloric acid as raw materials, and is refined through processes such as reaction synthesis, filtration, evaporation and concentration, and drying. White porous block, granular or honeycomb solid. The taste is slightly bitter and odorless. The aqueous solution is colorless. It is mainly used as a raw material for the production of various calcium salts in the inorganic chemical industry; also as a desiccant for gases and as a dehydrating agent in the production of alcohols, esters, ethers and acrylic resins. In the food industry, it is used as a calcium fortifier, curing agent, chelating agent, desiccant, etc. Calcium chloride desiccant has the functions of adsorption activity, static dehumidification and odor removal. Not only the adsorption speed is fast, the adsorption capacity is high, but also non-toxic, odorless, non-contact corrosive, non-environmental pollution, especially no harm to the human body. It is widely used in oil seals, optical medicine, health food and military products.