CaCL2 Calcium Chloride White Prills 25KG/BAG
Calcium chloride is an ionic compound composed of chlorine and calcium elements, with the chemical formula CaCl₂. It usually appears as white hard fragments or granules, is highly soluble in water and releases a large amount of heat, and its aqueous solution is slightly alkaline. Calcium chloride anhydrous has extremely strong hygroscopicity and is prone to deliquescence when exposed to air. Therefore, it is often used as a desiccant and can be used to dry gases such as nitrogen and oxygen. It can also be used as a moisture-proof agent in the food industry.
Colorless cubic crystals, white or grayish white, in granular, honeycomb block, spherical, irregular granular or powder form. Slightly toxic, odorless and slightly bitter in taste. It is highly deliquescent when exposed to the air. It is highly soluble in water. At 20℃, its solubility is 74.0g / 100g water, and it releases a large amount of heat simultaneously (the dissolution enthalpy of calcium chloride is -176.2cal /g). This property makes it very useful in applications that require rapid heat generation, such as serving as a heat source in certain heating processes. Additionally, the specific heat capacity and thermal conductivity of calcium chloride are also important physical parameters that affect its efficiency in thermal management and regulation applications . The aqueous solution of calcium chloride is neutral.
In aqueous solution, calcium chloride is completely ionized into Ca²⁺ and Cl⁻ ions, demonstrating the characteristics of a strong electrolyte. This electrolyte property makes calcium chloride solution not only have a high electrical conductivity and can effectively conduct electric current, but also become an important chemical raw material and analytical reagent. In fields such as water treatment, metal processing and chemical synthesis, this property of calcium chloride can be effectively utilized for ion exchange, pH regulation and the precipitation of metal ions.
1.As a desiccant, anhydrous calcium chloride, due to its strong hygroscopicity, is often used to dry gases (such as nitrogen and oxygen), store hygroscopic medicines or foods, and can also be made into dehumidifying bags for indoor moisture-proofing.
2. In the scenario of snow and ice removal, Calcium chloride can lower the freezing point of water and is widely used for winter snow melting on roads and airport runways. Its efficiency is higher than that of salt and it has a relatively smaller impact on vegetation.
3.In industry, calcium chloride can be used as an antifreeze agent for concrete, accelerating the hardening of cement and enhancing the frost resistance of concrete.
4. In food processing, CaCl2 is a commonly used stabilizer and coagulant (such as in the production of tofu), and can also be used as an electrolyte to enhance the taste of beverages, or in pickled foods to maintain their crispness.
5. In agriculture, CaCl2 can be used as a calcium fertilizer to supplement soil nutrients, and in aquaculture, calcium chloride helps accumulate calcium when aquatic organisms (such as shrimp and crab) molt. In medicine, calcium chloride injection can be used to treat hypocalcemia, hyperkalemia, or as an antidote for magnesium poisoning.