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Knowledge You Should Know About Calcium Nitride Ca3N2 Powder

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Update time : 2019-12-05 10:53:17
Calcium nitride is a solid brown nitride powder and an inorganic compound with constituent elements calcium and nitrogen and represented by the chemical formula Ca3N2. It has various isomorphs forms, and α-calcium nitride is more commonly encountered. Calcium nitride powder possesses the characteristics of high purity and uniform particle size distribution.

1. Calcium nitride Ca3N2 powder preparation
Ca3N2 is formed along with the oxide, CaO, when calcium burns in air. Heat the distilled fibrous metallic calcium to 450℃ in a purified nitrogen stream, and then metallic calcium is nitrided to calcium nitride after 3 to 4 hours.

Depending on the temperature of preparation, the obtained calcium nitride is black when 350℃, milky white when 350 to 1150℃, or golden yellow when 1150℃ or higher. It is easy to identify the calcium nitride formed, since it can react with moisture or water and produce calcium hydroxide and ammonia.
2. Physical and chemical properties of Ca2N2 powder
Calcium nitride is a brown crystal and an ionic compound with a density of 2.63 g/cm3 and a melting point of 1195℃. Its CAS number is 12013-82-0, and molar mass is 148.248 g·mol−1. It is a black, golden yellow or milky white hexagonal crystal under different conditions. Its crystal structure is cubic. Besides, α-calcium nitride will turn into β-calcium nitride at 700℃. α-calcium nitride adopts an anti-bixbyite structure, similar to MnO, but the positions of the ions are reversed.

Calcium nitride will hydrolyse to form calcium hydroxide in the presence of water and release ammonia. It is soluble in dilute acid and decomposes in anhydrous alcohol. It can also react with hydrogen to make calcium hydride and calcium amide.

3. Uses of Ca3N2 powder
Calcium nitride is a significant chemical reagent and has important uses in the chemical industry. Calcium nitride can be used to obtain reactive nitride ions. Besides, Calcium hydride can be produced by heating calcium nitride with hydrogen at temperatures above 350 °C. Calcium hydride is a reducing agent, desiccant, chemical analysis reagent. It is used in powder metallurgy. When heated from 600 to 1000℃, it can be reduced with zirconium, niobium, hafnium and other metal oxides to obtain a corresponding metal powder.

Calcium nitride is an essential hydrogen storage material. Hydrogen energy is an entirely pollution-free renewable energy source, and it is also an ideal green renewable resource.

Calcium nitride is the primary raw material for high-end phosphor. This kind of phosphors are more stable, performance is better, and the effect of high temperature and humidity is better.

Last but not least, calcium nitride can also be used as a chemical treating agent, which is the key to determining the performance of water-base muds.

4. Is Ca3N2 powder Toxic?
Repeated or excessive exposure to Ca3N2 can cause eye damage and skin burns. In addition, it is a flammable solid, and sparks, heat, open flames and water should be avoided as this may cause dangerous reactions.

5. Storage conditions of Ca3N2 powder
Calcium nitride Ca3N2 powder should be stored in a dry, cool and sealed environment, and should not be exposed to air. In addition, it should be protected from heavy pressure and transported as ordinary cargo.

TRUNNANO (Luoyang Trunnano Tech Co., Ltd ) is a professional Ca3N2 manufacturer with over 12 years experience in chemical products research and development. If you are looking for high quality Ca3N2, please feel free to contact us and send an inquiry.

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