WebElements Periodic Table of the Elements | Beryllium

Beryllium compounds: beryllium dibromide

The beryllium in beryllium dibromide formally is in the oxidation state 2.

Beryllium dibromide

Formula as often written: BeBr₂
Hill system formula: Be₁Br₂
CAS registry number: [7787-46-4]
Formula weight: 168.82
Class: bromide

Synonyms

beryllium dibromide
beryllium(II) bromide
beryllium bromide

Physical properties

Colour: white
Appearance: crystalline solid
Melting point: 508°C
Boiling point: 520°C; 490°C
Density: 3465 kg m^-3

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Element analysis

Element percentages for the elements in beryllium dibromide
Element	%
Be	5.34
Br	94.66

Synthesis

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)

Isotope pattern

What follows is the calculated isotope pattern for the BeBr₂ unit with the most intense ion set to 100%.

Formula: Be₁Br₂

mass  %
167  51.4 __________________________
168   0.0 
169 100.0 __________________________________________________
170   0.0 
171  48.6 ________________________

References

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.