The molecular formula for calcium chloride is CaCl2. It is a salt that is a chemical compound of the elements calcium and chlorine. At room temperature, CACl2 is a white-colored solid. It has an extremely high boiling point of 1,935 degrees Celsius.
CACl2 in its solid form is anhydrous, meaning that it contains no water. It is highly absorbent and is often used as a drying agent. It is also spread on roads and other surfaces to reduce dust and ice. CACl2 can be added to water to create saltwater solutions for use in refrigeration plants. Because it absorbs moisture from the air, it must be stored in sealed containers to remain in its anhydrous form.