What is the chemical formula for aluminum nitride?

The chemical formula for aluminum nitride is AlN. The compound contains one aluminum atom that is bound to a nitrogen atom, and it was first synthesized in 1877.

Aluminum nitride is a solid ceramic that can be white, pale yellow or pale blue. The composition is generally 65.83% aluminum and 34.17% nitrogen. The bonds between the elements Al and N join together to form a tetrahedral. It has a melting point of 3,000 degrees C and a boiling point of 2,200 degrees C, at which point it will sublime.

Aluminum nitride is used in the manufacturing of several optics, electronics and surface acoustic wave sensors. It can be found in cell phones, optical storage media and ultrasound transducers.