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Platinum(II) iodide

From Wikipedia - Reading time: 6 min
Platinum(II) iodide
beta-PtI2 (at room temperature)
Names
IUPAC name
diiodoplatinum
Other names
Platinum diiodide, platinum(2+) diiodide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.029.277 Edit this at Wikidata
EC Number
  • 232-204-2
UNII
  • InChI=1S/2HI.Pt/h2*1H;/q;;+2/p-2
    Key: ZXDJCKVQKCNWEI-UHFFFAOYSA-L
  • [Pt+2].[I-].[I-]
Properties
I2Pt
Molar mass 448.893 g·mol−1
Appearance black crystals
Density 6.403 g/cm3
Melting point 360 °C (680 °F; 633 K)
insoluble
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Platinum(II) iodide is a binary inorganic compound of platinum and iodine with the chemical formula PtI
2.[1][2][3]

Synthesis

[edit]

Production of platinum(II) iodide can be by heating of platinum(II) chloride with potassium iodide:

PtCl2 + 2KI → PtI2 + 2KCl

Chemical properties

[edit]

Platinum(II) iodide decomposes when heated:[4]

Ptl2 → Pt + I2

Physical properties

[edit]

Platinum(II) iodide forms black crystals[5] of several modifications. It is insoluble in water, ethanol, acetone, or ether, but is soluble in ethylamine and hydrogen iodide.[6]

[edit]

Potassium tetraiodoplatinate (K2PtI4) is a soluble derivative of PtI2.[7]

References

[edit]
  1. ^ "Platinum(II) Iodide". American Elements. Retrieved 17 April 2023.
  2. ^ "Platinum(II) iodide". Sigma Aldrich. Retrieved 17 April 2023.
  3. ^ "Platinum(II) iodide | CAS 7790-39-8". Santa Cruz Biotechnology. Retrieved 17 April 2023.
  4. ^ "Platinum(II) iodide, Premion , 99.99% (metals basis), Pt 43.0% min, Thermo Scientific Chemicals | Fisher Scientific". Fisher Scientific. Retrieved 17 April 2023.
  5. ^ Lide, David R. (19 June 2003). CRC Handbook of Chemistry and Physics. CRC Press. p. 4-81. ISBN 978-0-8493-0594-8. Retrieved 17 April 2023.
  6. ^ "12170 Platinum(II) iodide, Premion®, 99.99% (metals basis), Pt 43.0% min". Alfa Aesar. Retrieved 17 April 2023.
  7. ^ Olsson, Lars-Fride (1989). "Dipotassium Tetraiodoplatinate(II) Dihydrate". Inorganic Syntheses. 25: 98–100. doi:10.1002/9780470132562.ch21.
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