Ruthenium compounds: ruthenium triiodide

ruthenium symbol icon

The ruthenium in ruthenium triiodide formally is in the oxidation state 3.

Ruthenium triiodide

  • Formula as often written: RuI3
  • Hill system formula: I3Ru1
  • CAS registry number: [13896-65-6]
  • Formula weight: 481.783
  • Class: iodide


  • ruthenium triiodide
  • ruthenium(III) iodide
  • ruthenium iodide

Physical properties

  • Colour: black
  • Appearance: crystalline solid
  • Melting point:
  • Boiling point:
  • Density: 6000 kg m-3


Coming soon...

Element analysis

Element percentages for the elements in ruthenium triiodide
Element %
I 79.02
Ru 20.98


Not available

Isotope pattern

What follows is the calculated isotope pattern for the RuI3 unit with the most intense ion set to 100%.

Formula: Ru1I3

mass  %
477  17.5 _________
478 0.0
479 6.0 ___
480 40.2 ____________________
481 39.9 ____________________
482 53.8 ___________________________
483 100.0 __________________________________________________
484 0.0
485 59.2 ______________________________


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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ruthenium atomic number