Rhenium_triiodide

Rhenium(III) iodide

Rhenium(III) iodide

Chemical compound

Rhenium(III) iodide is a binary chemical compound of rhenium and iodide with the chemical formula ReI
3.[1][2]

Quick Facts Names, Identifiers ...

Synthesis

Rhenium(III) iodide can be synthesized by the decomposition of rhenium(IV) iodide:[3][4]

2ReI4 → 2ReI3 + I2

Another way to make it is by introduction of ethanol into a mixture of perrhenic acid and hydroiodic acid.

HReO4 + 3HI + 2C2H5OH → ReI3 + 4H2O + 2CH3CHO

Physical properties

Rhenium(III) iodide forms violet-black crystals. It is poorly soluble in water, acetone, ethanol, ether, and dilute acid solutions.

Chemical properties

When heated in vacuum up to 170 °C, the compound decomposes to rhenium(II) iodide, and at 380 °C — to rhenium(I) iodide:

2ReI3 → 2ReI2 + I2
ReI3 → ReI + I2

References

  1. [1]
    "Rhenium(III) Iodide". American Elements. Retrieved 6 May 2023.
  2. [2]
    "Rhenium(III) iodide". Alfa Chemistry. Retrieved 6 May 2023.
  3. [3]
    Kemmitt, R. D. W.; Peacock, R. D. (26 January 2016). The Chemistry of Manganese, Technetium and Rhenium: Pergamon Texts in Inorganic Chemistry. Elsevier. p. 918. ISBN 978-1-4831-8762-4. Retrieved 6 May 2023.
  4. [4]
    Inorganic Syntheses, Volume 7. John Wiley & Sons. 22 September 2009. p. 185. ISBN 978-0-470-13270-8. Retrieved 6 May 2023.
Share this article:

This article uses material from the Wikipedia article Rhenium_triiodide, and is written by contributors. Text is available under a CC BY-SA 4.0 International License; additional terms may apply. Images, videos and audio are available under their respective licenses.