Calcium chloride is known as one of the best dust control agents in the world because it retains moisture for quite a long time. Calcium chloride also is an efficient ice melter, and widely used in tandem with other salts to help de-ice roads in the winter season. Then substance releases heat, which activates salt's melting ability, and dissolves immediately to prevent ice from bonding to pavement.
There are several uses for calcium chloride in many industries, especially construction and mining. It is used as a cold weather concrete additive to accelerate the setting of concrete as well as a soil solidification material to help solidify loose, sandy soil. In mining, it is used in dust-proofing ore and coal as well as freeze-resisting them to help them retain moisture.
Calcium chloride is an odorless substance that is freely soluble in water. It presents itself in white to grayish-white granules. Calcium chloride melts at temperatures greater than 772 degrees Celsius and boils at temperatures greater than 1,600 degrees Celsius.
Calcium chloride is dangerous when it is heated to decomposition; toxic chlorine fumes are emitted. It is also dangerous in its natural state. It can irritate the skin if handled without gloves and can irritate the respiratory system if inhaled. Care should be taken when handling calcium chloride.
Inhalation of calcium chloride dust can result in shortness of breath and coughing. Ingestion can result in irritation of mucous membranes. Ingesting large amounts can result in vomiting and other gastrointestinal disorders.