Calcium chloride, a chemical compound composed of chlorine and calcium elements, with the chemical formula CaCl2 and a slight bitterness. It is a typical ionic halide, existing as white, hard lumps or granules at room temperature. Its common applications include brine for refrigeration equipment, road de-icing agents, and desiccants. Due to its hygroscopic nature, which causes it to absorb moisture from the air, anhydrous calcium chloride must be stored sealed in containers. Calcium chloride has significant applications in the food industry, construction materials, and biology, among other fields. It exhibits exceptional adsorption capabilities for ammonia with a low desorption temperature, presenting a promising application prospect in the adsorption and separation of ammonia synthesis.