Calcium nitride is an inorganic compound with the chemical formula Ca3N2. It is a solid red-brown crystalline solid made up of calcium and nitrogen. It can be used in the fabrication of ceramics and crucibles.

It is a reducing agent, desiccant, and chemical analysis reagent. It can also be heated with hydrogen to make calcium hydride.

The formula of calcium nitride is Ca3N2 O (CaN)+N2 and is written as Ca3N2 O or C3N2. It can be easily found in nature, but it is not a common ingredient in industrial chemical manufacturing.

In chemistry, a nitride is a compound of nitrogen where nitrogen has a formal oxidation state of -3 and has an ionic radius of about 140 pm. Nitrides are often classified into three types based on their chemical inertness and ability to withstand high temperatures: ionic, covalent, and interstitial.

Nitrides can be produced from various forms of nitrogen, including sulphur and carbon. They are often used in the production of nitrided metals, such as boron, vanadium, and silicon.

They are also used as abrasives and as hard coatings. Some nitrides, such as those of boron and vanadium, are chemically inert; others, such as those of titanium and silicon, are very refractory and can be used in the construction of crucibles.

The nitriding reaction of calcium is carried out by injecting successive puffs of nitrogen into the molten metallic calcium. This is done in a process called the Frank-Caro process. However, it is not suitable for large-scale production and does not achieve complete nitriding of the calcium. It also requires careful control of the temperature.

tags: Semiconductors semiconductor industry