Chemical elements
  Indium
    Isotopes
    Energy
    Production
    Application
    Physical Properties
    Chemical Properties
      Indium Trifluoride
      Indium monochloride
      Indium dichloride
      Indium trichloride
      Indium oxychloride
      Indium monobromide
      Indium tribromide
      Indium oxybromide
      Indium mono-iodide
      Indium di-iodide
      Indium tri-iodide
      Indium perchlorate
      Indium iodate
      Indium sesqui-oxide
      Indium hydroxide
      Indium monosulphide
      Indium disulphide
      Indium sesquisulphide
      Indium trisulphide
      Basic indium sulphite
      Indium sulphate
      Indium sesquiselenide
      Indium selenite
      Indium selenate
      Indium telluride
      Indium silicotungstates
      Indium nitrate
      Indium phosphide
      Indium platinocyanide
      Indium oxalate
      Indium acetylacetonate
    PDB 1ind-1ind

Indium di-iodide, InI2






Indium di-iodide, InI2, has not been isolated in the pure state, but thermal analysis shows that the compound exists. A mixture containing indium and iodine in the ratio In:I2 melts at c. 212°, and the addition of either iodine or indium depresses the melting-point. The failure to obtain the di-iodide by heating the elements together in the correct ratio and distilling the product is doubtless due to dissociation of the molten di-iodide into the mono- and tri-iodides taking place to a very large extent, as the shape of the melting-point curve indicates.


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