Mercury: dimercury diiodide

dimercury diiodide is known by the following synonyms:

  • dimercury diiodide
  • mercury(I) iodide
  • mercurous iodide
  • mercury iodide

The oxidation number of mercury in dimercury diiodide is 1.

  • Formula: Hg2I2
  • Hill system formula: Hg2I2
  • CAS registry number: [15385-57-6]
  • Formula weight: 654.989
  • Class: iodide
  • Colour: yellow
  • Appearance: crystalline solid. Light sensitive
  • Melting point: 290°C
  • Boiling point: 140°C
  • Density: 7700 kg m-3

Synthesis

Not available

Solid state structure

  • Geometry of mercury:
  • Prototypical structure:

Crystal structure of dimercury diiodide

Element analysis

Element percentages in dimercury diiodide
Element %
Hg 61.25
I 38.75

Isotope pattern for Hg2I2

THe chart below shows the calculated isotope pattern for the formula Hg2I2 with the most intense ion set to 100%.

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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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