Iron compounds: iron tribromide

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The iron in iron tribromide formally is in the oxidation state 3.

Crystal structure of iron tribromide

Iron tribromide

  • Formula as often written: FeBr3
  • Hill system formula: Br3Fe1
  • CAS registry number: [10031-26-2]
  • Formula weight: 295.557
  • Class: bromide

Synonyms

  • iron tribromide
  • iron(III) bromide
  • iron bromide

Physical properties

  • Colour: brownish red
  • Appearance: crystalline solid
  • Melting point: 200°C (decomposes)
  • Boiling point:
  • Density: 4500 kg m-3

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Element analysis

Element percentages for the elements in iron tribromide
Element %
Br 81.11
Fe 18.89

Synthesis

Not available

Solid state structure

  • Geometry of iron:
  • Prototypical structure:

Crystal structure of iron tribromide

Isotope pattern

What follows is the calculated isotope pattern for the FeBr3 unit with the most intense ion set to 100%.

Formula: Fe1Br3

mass  %
291   2.0 _
292 0.0
293 38.2 ___________________
294 0.8
295 100.0 __________________________________________________
296 2.3 _
297 93.7 _______________________________________________
298 2.2 _
299 30.0 _______________
300 0.7
301 0.1

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.

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iron atomic number