Beryllium dibromide

  • Formula: BeBr2
  • Hill system formula: Be1Br2
  • CAS registry number: [7787-46-4]
  • Formula weight: 168.82
  • Class: bromide
  • Colour: white
  • Appearance: crystalline solid
  • Melting point: 508°C
  • Boiling point: 520°C; 490°C
  • Density: 3465 kg m-3

The following are some synonyms of beryllium dibromide:

  • beryllium dibromide
  • beryllium(II) bromide
  • beryllium bromide

The oxidation number of beryllium in beryllium dibromide is 2.


Beryllium bromide can be made by the direct reaction of the elements at warm temperatures. This involves carrying the bromine over the beryllium in a stream of argon gas.

Be(s) + Br2(g) (50°C) → BeBr2(s)

Element analysis

The table shows element percentages for BeBr2 (beryllium dibromide).

Element %
Be 5.34
Br 94.66

Isotope pattern for BeBr2

The chart below shows the calculated isotope pattern for the formula BeBr2 with the most intense ion set to 100%.


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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