What exactly is calcium chloride? Calcium chloride, often abbreviated as CaCl₂, is a chemical compound known for its strong hygroscopic properties. Simply put, this means that it is a true moisture magnet. It attracts moisture from the air and binds it to itself. This property makes calcium chloride an indispensable... What exactly is calcium chloride? Calcium chloride, often abbreviated as CaCl₂, is a chemical compound known for its strong hygroscopic properties. Simply put, this means that it is a true moisture magnet. It attracts moisture from the air and binds it to itself. This property makes calcium chloride an indispensable...