Iodine Trichloride
Get Iodine Trichloride essential facts below. View Videos or join the Iodine Trichloride discussion. Add Iodine Trichloride to your topic list for future reference or share this resource on social media.
Iodine Trichloride
Iodine trichloride
Full structural formula of the dimer
Space-filling model of the dimer
Commercial sample of iodine trichloride
IUPAC name
Iodine trichloride
Other names
Diiodine hexachloride
3D model (JSmol)
ECHA InfoCard 100.011.582 Edit this at Wikidata
  • InChI=1S/Cl3I/c1-4(2)3 checkY
  • InChI=1/Cl3I/c1-4(2)3
Molar mass 466.5281 g/mol
Appearance yellow or red solid
Density 3.11 g/cm3
Melting point 63 °C (145 °F; 336 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY?N ?)
Infobox references

Iodine trichloride is an interhalogen compound of iodine and chlorine. It is bright yellow but upon time and exposure to light it turns red due to the presence of elemental iodine. In the solid state is present as a planar dimer I2Cl6, with two bridging Cl atoms.[1]

It can be prepared by reacting iodine with an excess of liquid chlorine at -70 °C. In the molten state it is conductive, which may indicate dissociation:[2]

I2Cl6 ? +

Iodine trichloride can be created by heating a mixture of liquid iodine and chlorine gas to 105 °C.

It is an oxidizing agent, capable of causing fire on contact with organic materials.


  1. ^ K. H. Boswijk; E. H. Wiebenga (1954). "The crystal structure of I2Cl6 (ICl3)". Cite journal requires |journal= (help) | journal = Acta Crystallographica | volume = 7 | issue = 5| pages = 417-423 | doi = 10.1107/S0365110X54001260 | doi-access = free
  2. ^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



Music Scenes