dihydrate

Calcium chloride dihydrate is a chemical compound with the molecular formula CaCl2·2H2O. It is a crystalline salt that is highly soluble in water and has a variety of industrial and medical applications. It is commonly used as a desiccant to absorb moisture, as a de-icing agent for roads and sidewalks, and as a food preservative. It is also used in the production of cement, as a laboratory reagent, and in medicine as a source of calcium for intravenous therapy.