magnesiumklorid

Magnesiumklorid is the chemical compound with the formula MgCl2. It is an ionic compound composed of magnesium cations (Mg2+) and chloride anions (Cl-). In its anhydrous form, it is a white crystalline solid. Magnesiumklorid is hygroscopic, meaning it readily absorbs moisture from the air, and can form a hydrate with six molecules of water, MgCl2·6H2O.

This compound is found naturally in seawater and brine deposits. It is a significant component of seawater, contributing to its salinity. It can be extracted from these sources through evaporation and subsequent processing. Industrially, it is often produced from magnesium-rich minerals like magnesite and dolomite.

Magnesiumklorid has a wide range of applications. It is used as a de-icing agent for roads and sidewalks due to its ability to lower the freezing point of water. It also finds use as a dust suppressant on unpaved roads, as it attracts moisture and binds dust particles. In industry, it is a precursor for the production of magnesium metal and is used in the manufacture of textiles, paper, and cement. It is also employed in some nutritional supplements as a source of magnesium. In medicine, magnesiumklorid solutions can be used intravenously to treat magnesium deficiencies.