Erbium(III) chloride
| Names | |
|---|---|
| IUPAC name Erbium(III) chloride | |
| Other names Erbium trichloride | |
| Identifiers | |
| 
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| 3D model (JSmol) | |
| ChemSpider | |
| ECHA InfoCard | 100.030.337 | 
| EC Number | 
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| PubChem CID | |
| UNII | |
| CompTox Dashboard (EPA) | |
| 
 | |
| 
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| Properties | |
| ErCl3 (anhydrous) ErCl3·6H2O (hexahydrate) | |
| Molar mass | 273.62 g/mol (anhydrous) 381.71 g/mol (hexahydrate) | 
| Appearance | violet hygroscopic monoclinic crystals (anhydrous) pink hygroscopic crystals (hexahydrate) | 
| Density | 4.1 g/cm3 (anhydrous) | 
| Melting point | 776 °C (1,429 °F; 1,049 K) (anhydrous) decomposes (hexahydrate) | 
| Boiling point | 1,500 °C (2,730 °F; 1,770 K) | 
| soluble in water (anhydrous) slightly soluble in ethanol (hexahydrate) | |
| Structure | |
| monoclinic | |
| C2/m, No. 12 | |
| a = 6.80 Å, b = 11.79 Å, c = 6.39 Å α = 90°, β = 110.7°, γ = 90° | |
| Lattice volume (V) | 479 Å3 | 
| Formula units (Z) | 4 | 
| Related compounds | |
| Other anions | Erbium(III) oxide | 
| Other cations | Holmium(III) chloride, Thulium(III) chloride | 
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references | |
Erbium(III) chloride is a violet solid with the formula ErCl3. It is used in the preparation of erbium metal.