Europium(III) arsenate
Chemical compound
From Wikipedia, the free encyclopedia
Europium(III) arsenate is an arsenate salt of europium, with the chemical formula of EuAsO4. It has good thermal stability, with its pKsp,c of 22.53±0.03.[1] It is a colorless crystal with a xenotime structure.[2]
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| Names | |
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| Other names
Europium arsenate | |
| Identifiers | |
3D model (JSmol) |
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| Properties | |
| EuAsO4 | |
| Appearance | solid |
| insoluble | |
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
Europium(III) arsenate can be prepared by reacting sodium arsenate (Na3AsO4) in a europium(III) chloride (EuCl3) solution:[3]
- Na3AsO4 + EuCl3 → 3 NaCl + EuAsO4↓
Reacting europium(III) oxide (Eu2O3) with arsenic pentoxide (As2O5) can also obtain europium(III) arsenate.[2]
- Eu2O3 + As2O5 → 2EuAsO4
