Calcium Chloride

Calcium Chloride is an ionic compound of calcium and chlorine with the chemical formula CaCl2 and CAS 10043-52-4. At room temperature, it is a colorless crystalline solid that is highly soluble in water. Calcium chloride is used in industry as a de-icer, in road surfacing to suppress the formation of dust, in water treatment to increase the hardness of water in swimming pools, and as an additive in plastics and fire extinguishers.


Calcium Chloride is a solid salt at room temperature that behaves as a typical ionic halide. In the USA most calcium chloride is obtained by purification of brine. It is an odorless, hydroscopic, colorless, or white crystalline solid that sinks and mixes with water.

The ionic compound is highly toxic, harmful if swallowed, causes serious eye damage, and exposure may cause respiratory irritation. It is not combustible but gives off irritating or toxic fumes or gases in a fire.

Calcium chloride is used as an additive in plastics and in fire extinguishers, as a drainage aid in wastewater treatment, as an additive to control scaffolding in blast furnaces, and in fabric softener as a thinner.

Although Calcium Chloride can be produced directly from limestone, large quantities are also produced as a by-product of the Solvay process. Because of its hygroscopic nature, the hazardous compound must be kept in tightly-sealed containers.

Calcium Chloride is available for shipping throughout the continental United States with one-to-two (1-2) week lead time, subject to change based on availability. Please call (401) 360-2800 for details. Calcium Chloride is a dry, white powder packed in 25 kg bags. Special packaging may be available on request.

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