Erbium(III) iodide is an
iodide
An iodide ion is the ion Iā. Compounds with iodine in formal oxidation state ā1 are called iodides. In everyday life, iodide is most commonly encountered as a component of iodized salt, which many governments mandate. Worldwide, iodine de ...
of
lanthanide metal
erbium
Erbium is a chemical element with the symbol Er and atomic number 68. A silvery-white solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements. It is a lanthanide, a rare-earth element, or ...
.
The compound is insoluble in water and is white to slightly pink in appearance.
The chemical can be produced by the reaction of elemental iodine and finely divided erbium by the following equation:
2Er + 3I_2\longrightarrow 2ErI_3
References
Erbium compounds
Iodides
Lanthanide halides
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