Dysprosium(III) selenide
Chemical compound
From Wikipedia, the free encyclopedia
Dysprosium(III) selenide is one of the selenides of dysprosium, with the chemical formula of Dy2Se3.
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3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.031.490 |
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| Properties | |
| Dy2Se3 | |
| Molar mass | 561.913 g·mol−1 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Preparation
Dysprosium(III) selenide can be prepared by reacting dysprosium(III) oxide or dysprosium(III) chloride with hydrogen selenide:[1]
- Dy2O3 + 3 H2Se → Dy2Se3 + 3 H2O
- 2 DyCl3 + 3 H2Se → Dy2Se3 + 6 HCl
It can also be obtained by reacting the elements at high temperatures:[2]
- 2 Dy + 3 Se → Dy2Se3
Properties
Dysprosium(III) selenide reacts with arsenic triselenide to obtain DyAsSe3.[3]
- Dy2Se3 + As2Se3 → 2DyAsSe3