calciumklorid

Calcium chloride is an inorganic compound with the chemical formula CaCl2. It is a salt composed of calcium cations (Ca2+) and chloride anions (Cl−). In its anhydrous form, it is a white crystalline solid. Calcium chloride is highly hygroscopic, meaning it readily absorbs moisture from the air. This property makes it useful for various applications, including de-icing roads, dust control, and as a desiccant.

The compound is readily soluble in water and releases a significant amount of heat during dissolution, a process known as exothermicity. This exothermic reaction is exploited in certain heating applications. Calcium chloride can be produced through several methods, including the reaction of limestone (calcium carbonate) with hydrochloric acid, or as a byproduct of the Solvay process, which is used in the manufacture of sodium carbonate.

In addition to its industrial uses, calcium chloride plays a vital role in biological systems. It is an essential mineral for humans and animals, contributing to bone health, muscle function, and nerve signaling. In food preparation, it is used as a firming agent in canned fruits and vegetables and in the production of cheese. It is also added to beverages to provide calcium and electrolyte balance. Its low toxicity allows for its use in food-grade applications.