砷酸鐠

砷酸鐠是鐠的砷酸鹽，化學式為PrAsO₄。它有著很好的熱穩定性。其鐵電轉變溫度為52°C。^[1]

製備[編輯]

砷酸鐠可由砷酸鈉（Na₃AsO₄）和氯化鐠（PrCl₃）在溶液中反應製得：^[2]

Na₃AsO₄ + PrCl₃ → 3 NaCl + PrAsO₄↓

十一氧化六鐠和砷酸氫二銨按化學計量比在熱的稀硝酸中反應也能得到產物。^[1]

^ ^1.0 ^1.1 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（俄文）. Soobshcheniya Akademii Nauk Gruzinskoi SSR (1980), 97(2), 345-8. ISSN:0002-3167