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| Erbium(III) oxide | |
|---|---|
| Other names | Erbium oxide, erbia |
| Identifiers | |
| CAS number | 12061-16-4 |
| Properties | |
| Molecular formula | Er2O3 |
| Molar mass | 382.56 g/mol |
| Appearance | Pink, Solid |
| Density | 8.64 g/mL |
| Melting point |
2355 °C |
| Solubility in other solvents | Insoluble |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox references |
|
Erbium(III) oxide, a pink solid, is a compound of erbium sometimes used as a colouring for glasses and a dopant for optical fibres and optical amplifiers. It was partially isolated by Carl Gustaf Mosander in 1843, and first obtained in pure form in 1905 by Georges Urbain and Charles James.
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