Calcium compounds: tricalcium dinitride

calcium symbol icon

The calcium in tricalcium dinitride formally is in the oxidation state 2.

Tricalcium dinitride

  • Formula as often written: Ca3N2
  • Hill system formula: Ca3N2
  • CAS registry number: [12013-82-0]
  • Formula weight: 148.247
  • Class: nitride


  • tricalcium dinitride
  • calcium(II) nitride
  • calcium nitride
  • calcium nitride (α form)

Physical properties

  • Colour: red-brown
  • Appearance: crystalline solid
  • Melting point: 1195°C
  • Boiling point:
  • Density: 2670 kg m-3


Coming soon...

Element analysis

Element percentages for the elements in tricalcium dinitride
Element %
Ca 81.10
N 18.90


Calcium nitride is available from the direct reaction of calcium metal with nitrogen gas.

3Ca(s) + 2N2(g) → Ca3N2(s)

Isotope pattern

What follows is the calculated isotope pattern for the Ca3N2 unit with the most intense ion set to 100%.

Formula: Ca3N2

mass  %
148 100.0 __________________________________________________
149 0.7
150 2.0 _
151 0.4
152 6.5 ___
153 0.1
154 0.1
155 0.0
156 0.7
157 0.0
158 0.0
159 0.0
160 0.0


The data on these compounds pages are assembled and adapted from the primary literature and several other sources including the following.

  • R.T. Sanderson in Chemical Periodicity, Reinhold, New York, USA, 1960.
  • N.N. Greenwood and A. Earnshaw in Chemistry of the Elements, 2nd edition, Butterworth, UK, 1997.
  • F.A. Cotton, G. Wilkinson, C.A. Murillo, and M. Bochmann, in Advanced Inorganic Chemistry, John Wiley & Sons, 1999.
  • A.F. Trotman-Dickenson, (ed.) in Comprehensive Inorganic Chemistry, Pergamon, Oxford, UK, 1973.
  • R.W.G. Wyckoff, in Crystal Structures, volume 1, Interscience, John Wiley & Sons, 1963.
  • A.R.West in Basic solid state chemistry Chemistry, John Wiley & Sons, 1999.
  • A.F. Wells in Structural inorganic chemistry, 4th edition, Oxford, UK, 1975.
  • J.D.H. Donnay, (ed.) in Crystal data determinative tables, ACA monograph number 5, American Crystallographic Association, USA, 1963.
  • D.R. Lide, (ed.) in Chemical Rubber Company handbook of chemistry and physics, CRC Press, Boca Raton, Florida, USA, 77th edition, 1996.
  • J.W. Mellor in A comprehensive treatise on inorganic and theoretical chemistry, volumes 1-16, Longmans, London, UK, 1922-1937.
  • J.E. Macintyre (ed.) in Dictionary of inorganic compounds, volumes 1-3, Chapman & Hall, London, UK, 1992.

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calcium atomic number