Erbium(III) iodide is an iodide of lanthanide metal erbium.[1] The compound is insoluble in water and is white to slightly pink in appearance.[2]
Erbium(III) iodide can be produced by the reaction of elemental iodine and finely divided erbium by the following equation:[3]
2 Er 3 + I 2 ⟶ ⟶ --> 2 ErI 3 {\displaystyle {\ce {2Er+3I_{2}\longrightarrow 2ErI_{3}}}}
Erbium(III) iodide has a trigonal crystal structure with space group R3 (space group no. 148).[4]
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