Praseodymium arsenate
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3D model (JSmol)
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PubChem CID
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| Properties | |
| PrAsO4 | |
| Appearance | solid |
| insoluble | |
| Related compounds | |
Other anions
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Praseodymium(III) nitrate Praseodymium(III) phosphate Praseodymium(III) antimonate Praseodymium(III) bismuthate Praseodymium(III) carbonate |
Other cations
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NdAsO4 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Praseodymium arsenate is the arsenate salt of praseodymium, with the chemical formula of PrAsO4. It has good thermal stability.[citation needed] Its ferroelectric transition temperature is 52°C.[1]
Preparation
[edit]Praseodymium arsenate be prepared by reacting sodium arsenate (Na3AsO4) and praseodymium chloride (PrCl3) in a solution:[2]
- Na3AsO4 + PrCl3 → 3 NaCl + PrAsO4↓
The product can also be obtained by reacting praseodymium(III,IV) oxide and diammonium hydrogen arsenate in hot dilute nitric acid in a stoichiometric ratio.[1]
References
[edit]- ^ a b Choudhary, R. N. P.. Structural and electrical properties of monoclinic praseodymium arsenic oxide (PrAsO4). Journal of Materials Science Letters, 1991. 10 (8): 432-434. DOI:10.1007/BF00838340
- ^ Gabisoniya, Ts. D.; Nanobashvili, E. M.. Synthesis of rare earth metal arsenates. Soobshcheniya Akademii Nauk Gruzinskoi SSR (1980), 97(2), 345-8. ISSN 0002-3167
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