Europium(III) iodide
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| Names | |
|---|---|
| IUPAC name
Europium(III) iodide | |
| Other names
Europium triiodide | |
| Identifiers | |
3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.033.941 |
| EC Number |
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PubChem CID |
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CompTox Dashboard (EPA) |
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| Properties | |
| EuI 3 | |
| Molar mass | 532.677 g mol−1 |
| Appearance | colourless crystals[2] |
| Melting point | decomposes[1] |
| Structure[1][3][4] | |
| BiI3 | |
| octahedral | |
| Related compounds | |
Other anions |
EuF3, EuCl3, EuBr3 |
Other cations |
SmI3, GdI3 |
Related compounds |
EuI2 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Europium(III) iodide is an inorganic compound, a salt containing europium and iodine with the chemical formula EuI3.[1]
Europium metal reacts directly with iodine to form europium(III) iodide:[5]
- 2 Eu + 3 I2 → 2 EuI3
Hydrated europium(III) iodide can be prepared dissolving europium(III) oxide or europium(III) carbonate in hydroiodic acid:[1][6]
- Eu2O3 + 6 HI + 6 H2O → 2 EuI3·9H2O
Europium powder reacts with iodine in THF to form a THF adduct of europium(III) iodide:[7][8]
- 2 Eu + 3 I2 + 7 THF → [EuI2(THF)5][EuI4(THF)2]
The adduct can be formulated more simply as EuI3(THF)3.5.