Magnesiumfluoridi

Magnesiumfluoridi is the chemical compound with the formula MgF2. It is a white solid at room temperature and is the inorganic salt formed from magnesium and fluorine. Magnesiumfluoridi is sparingly soluble in water. It crystallizes in the rutile structure, which is also adopted by titanium dioxide.

This compound is found naturally in the mineral sellaite. Magnesiumfluoridi has a high melting point and is quite stable. It is often used as a source of magnesium in various chemical processes and as a flux in metallurgy. Its optical properties are also of interest; it is transparent to a wide range of electromagnetic radiation, including ultraviolet light, making it useful in optical coatings and lenses for certain applications.

Industrially, magnesiumfluoridi is produced by reacting magnesium oxide or magnesium hydroxide with hydrofluoric acid. The reaction yields magnesiumfluoride and water. Another method involves the reaction of magnesium metal with fluorine gas, although this is a more energetic and less common approach for large-scale production. Due to its hardness and resistance to abrasion, it can be employed in protective coatings for various surfaces.