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Overview of of Calcium Nitride

wallpapers News 2021-06-21
Calcium Nitride
Calcium nitride is a compound composed of calcium and nitrogen. Its chemical formula is Ca3N2 and its appearance is a reddish-brown solid crystal. Calcium nitride will be hydrolyzed in contact with water to form calcium hydroxide and release ammonia. It is soluble in dilute acid and decomposes in alcohol.
Synthesis of calcium nitride
Calcium nitride can be produced by reacting elemental calcium in a nitrogen stream. The fine fibrous calcium metal purified by distillation is placed in a nickel boat and heated at 450°C for 3 to 4 hours in a pure N2 gas stream. Because metallic calcium undergoes a crystalline transformation (hexagonal crystal Ca→body-centered cubic Ca) at this temperature, the metal lattice structure becomes loose, so the nitridation reaction speed is very fast, and calcium nitride can be obtained.
Chemical equation
Properties of Calcium Nitride (Ca3N2)
Melting point            1195°C
Boiling point             1195°C
Density                     2.63g/mLat25°C(lit.)
Form                         Pieces
Specific gravity         2.63
Color                         Brown
Water solubility         Insoluble in water.
Sensitivity                 Moisture Sensitive
Nature and stability
It will not decompose if used and stored according to specifications. Properties αCa3N2 (reverse Sc2O3 type) transforms into βCa3N2 at 700℃. The color of the product varies depending on the temperature of the preparation. It is black at 350°C, golden at 1150°C, and milky white at temperatures between the two. It reacts with water and decomposes into Ca(OH)2 and NH3.
Sealed in a cool and dry place
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