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Iodine trichloride

Iodine trichloride
Full structural formula of the dimer
Space-filling model of the dimer
Commercial sample of iodine trichloride
Names
IUPAC name
iodine trichloride
Identifiers
865-44-1 YesY
3D model (Jmol) Interactive image
ChemSpider 63265 YesY
ECHA InfoCard 100.011.582
PubChem 70076
Properties
I2Cl6
Molar mass 466.5281 g/mol
Appearance yellow solid
Density 3.11 g/cm3
Melting point 63 °C (145 °F; 336 K)
−90.2·10−6 cm3/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
YesY  (what is YesYN ?)
Infobox references

Iodine trichloride is an interhalogen compound of iodine and chlorine. It is bright yellow and in the solid state is present as a planar dimer I2Cl6, Cl2I(μ-Cl)2ICl2, with two bridging Cl atoms.

It can be prepared by reacting iodine with an excess of liquid chlorine at −70 °C. In the melt it is conductive, which may indicate dissociation:

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.


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