Iridium: iridium hexafluoride

iridium hexafluoride is known by the following synonyms:

  • iridium hexafluoride
  • iridium(VI) fluoride
  • iridium fluoride

The oxidation number of iridium in iridium hexafluoride is 6.

  • Formula: IrF6
  • Hill system formula: F6Ir1
  • CAS registry number: [7783-75-7]
  • Formula weight: 306.207
  • Class: fluoride
  • Colour: yellow
  • Appearance: crystalline solid
  • Melting point: 44°C
  • Boiling point: 53°C
  • Density: 4800 kg m-3


Not available

Solid state structure

  • Geometry of iridium: 6 coordinate: octahedral
  • Prototypical structure:

Crystal structure of iridium hexafluoride

Element analysis

Element percentages in iridium hexafluoride
Element %
F 37.23
Ir 62.77

Isotope pattern for IrF6

THe chart below shows the calculated isotope pattern for the formula IrF6 with the most intense ion set to 100%.


Coming soon...


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.

WebElements chemistry shop

You can buy periodic table posters, mugs, T-shirts, periodic table fridge magnets, games, molecular models, and more at the WebElements periodic table shop