砷酸铒是铒的砷酸盐，化学式为ErAsO4。它有着很好的热稳定性，其pKsp,c为22.47±0.04。[1]
| 砷酸铒 | |
|---|---|
| |
| 识别 | |
| CAS号 | 28548-44-9 
|
| 性质 | |
| 化学式 | ErAsO4 |
| 外观 | 固体 |
| 溶解性（水） | 难溶 |
| 若非注明，所有数据均出自标准状态（25 ℃，100 kPa）下。 | |
制备
砷酸铒可由砷酸钠（Na3AsO4）和氯化铒（ErCl3）在溶液中反应制得：[2]
- Na3AsO4 + ErCl3 → 3 NaCl + ErAsO4↓
参考文献
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