Palladium(II) Iodide
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Palladium II Iodide
Palladium(II) iodide
Unit cell of PdI2.png
3D model (JSmol)
ECHA InfoCard 100.029.276 Edit this at Wikidata
EC Number
  • 232-203-7
  • InChI=1S/2HI.Pd/h2*1H;/q;;+2/p-2 ?N
  • InChI=1/2HI.Pd/h2*1H;/q;;+2/p-2
  • [Pd](I)I
Molar mass 360.229 g/mol
Appearance Black crystals
Density 6,003 g/cm3
Melting point 350 °C (decomposes)
Insoluble in water
S-phrases (outdated) S22 S24/25
Related compounds
Other anions
Palladium(II) fluoride
Palladium(II) chloride
Palladium(II) bromide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Palladium(II) iodide is an inorganic compound of palladium and iodine. It is commercially available, though less common than palladium(II) chloride, the usual entry point to palladium chemistry.

Historically, the quantity of palladium in a sample may be determined gravimetrically by precipitation as palladium(II) iodide. Unlike the chloride and bromide, palladium(II) iodide is not quite as soluble in excess iodide.[1]


Palladium(II) iodide is insoluble in water by itself, but in the presence of excess iodide it may dissolve due to the formation of the PdI42- anion. While in solution it can act as a catalyst in some organic reactions.[2]


  1. ^ Beamish, F. E.; Dale, J. (1938). "Determination of Palladium by Means of Potassium Iodide". Industrial & Engineering Chemistry Analytical Edition. 10 (12): 697. doi:10.1021/ac50128a015.
  2. ^ Gabriele, Bartolo; Salerno, Giuseppe (2006), "Palladium(II) Iodide", Encyclopedia of Reagents for Organic Synthesis, American Cancer Society, doi:10.1002/047084289x.rn00658, ISBN 978-0-470-84289-8, retrieved

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