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Contents

   



(Top)
  


1 Preparation  




2 Properties  




3 Uses  




4 References  













Iridium(IV) iodide






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From Wikipedia, the free encyclopedia
  
(Redirected from Iridium tetraiodide)
Iridium(IV) iodide
Names
Other names

Iridium(IV) iodide, tetraiodoiridium

Identifiers

CAS Number

3D model (JSmol)
ChemSpider
ECHA InfoCard 100.029.279 Edit this at Wikidata
EC Number
  • 232-206-3

PubChem CID

CompTox Dashboard (EPA)

  • InChI=1S/4HI.Ir/h4*1H;/q;;;;+4/p-4

    Key: BUUWLOZTIYBNKB-UHFFFAOYSA-J

  • I[Ir](I)(I)I

Properties

Chemical formula

 I4Ir
Molar mass 699.835 g·mol−1
Appearance Black powder
Melting point 100 °C (212 °F; 373 K)

Solubility in water

 insoluble
Structure

Crystal structure

 hexagonal
Related compounds

Related compounds

 Iridium triiodide, platinum tetraiodide

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

Iridium(IV) iodide is a binary chemical compound of iridium and iodide with the chemical formula IrI
4.[1][2][3]

Preparation[edit]

Iridium(IV) iodide can be obtained by reacting dipotassium hexachloroiridate or hexachloroiridic acid with an aqueous solution of potassium iodide.[4][5]

Properties[edit]

Iridium tetraiodide forms black crystals, does not dissolve in water and alcohol.[6][7][8] In alkali metal iodide solutions, the compound dissolves easily to give a ruby red solution, forming complex salts.[5]

The compound decomposes when heated:[citation needed]

IrI4 → Ir + 2I2

Uses[edit]

Iridium(IV) iodide can be used as a catalyst in organic chemistry.[9][8]

References[edit]

  1. ^ "CAS 7790-45-6 Iridium tetraiodide - Alfa Chemistry". alfa-chemistry.com. Retrieved 3 May 2023.
  • ^ "Iridium tetraiodide". American Elements. Retrieved 3 May 2023.
  • ^ Macintyre, Jane E. (23 July 1992). Dictionary of Inorganic Compounds. CRC Press. p. 3507. ISBN 978-0-412-30120-9. Retrieved 3 May 2023.
  • ^ "Studies on iridium compounds". discover.dtic.mil. Retrieved 2023-10-16.
  • ^ a b Kandiner, H. J. (2013-09-03). Iridium (in German). Springer-Verlag. ISBN 978-3-662-12128-3.
  • ^ Comey, Arthur Messenger (1896). A Dictionary of Chemical Solubilities Inorganic: xx, 515 p. Macmillan & Company. p. 193. Retrieved 3 May 2023.
  • ^ Roscoe, Henry Enfield; Schorlemmer, Carl (1895). A Treatise on Chemistry. D. Appleton. p. 445.
  • ^ a b "Iridium(IV) iodide". Alfa Aesar. Retrieved 3 May 2023.
  • ^ Nobel, Dominique (8 August 1996). "Method for preparing iridium iodides and use thereof as catalysts". Retrieved 3 May 2023.
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