Iridium(IV) iodide
Appearance
Names | |
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Other names
Iridium(IV) iodide, tetraiodoiridium
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Identifiers | |
3D model (JSmol)
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ChemSpider | |
ECHA InfoCard | 100.029.279 |
EC Number |
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PubChem CID
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CompTox Dashboard (EPA)
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Properties | |
I4Ir | |
Molar mass | 699.835 g·mol−1 |
Appearance | Black powder |
Melting point | 100 °C (212 °F; 373 K) |
insoluble | |
Structure | |
hexagonal | |
Related compounds | |
Related compounds
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Iridium triiodide, platinum tetraiodide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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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]- ^ "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.