as a hydrated solid with generic formula , where n = 0, 1, 2, 4, and 6. These compounds are mainly used for de-icing and dust control. Because the anhydrous salt is hygroscopic and deliquescent, it is used as a desiccant.

History

Calcium chloride was apparently discovered in the 15th century but wasn't studied properly until the 18th century. It was historically called

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