Strontium fluoride

A chemical compound of strontium and fluorine

3D ionic structure of fluorite, similar to strontium fluoride.

Strontium fluoride is an inorganic compound with the formula SrF_. It is a white crystalline solid that is slightly soluble in water. Strontium fluoride is used in a variety of applications, including optics and electronics.

Structure

Strontium fluoride crystallizes in the fluorite structure, which is a cubic arrangement. In this structure, each strontium ion is surrounded by eight fluoride ions, and each fluoride ion is surrounded by four strontium ions. This arrangement is similar to that of calcium fluoride, another compound with the fluorite structure.

Properties

Strontium fluoride is known for its high melting point and low solubility in water. It is a stable compound that does not react with most acids or bases. The compound is also transparent to a wide range of wavelengths, making it useful in optical applications.

Applications

Strontium fluoride is used in the production of optical materials, such as lenses and windows, due to its transparency and low refractive index. It is also used in the electronics industry as a component in certain types of semiconductors.

Production

Strontium fluoride can be produced by the reaction of strontium carbonate with hydrofluoric acid. The reaction produces strontium fluoride and carbon dioxide:

SrCO_ + 2 HF _ SrF_ + CO_ + H_O

Safety

While strontium fluoride is generally considered to be of low toxicity, it should be handled with care. Inhalation or ingestion of the compound can be harmful, and appropriate safety measures should be taken when working with it.

Related pages

• Strontium
• Fluoride
• Calcium fluoride
• Fluorite