草酸釤

草酸釤是釤的草酸盐，化学式为Sm₂(C₂O₄)₃，其水合物可由硝酸钐和草酸在水溶液中反应得到：

2 Sm(NO₃)₃ + 3 H₂C₂O₄ → Sm₂(C₂O₄)₃ + 6 HNO₃

它的十水合物受热分解得到无水物，继续加热得到氧化釤。^[1]它和盐酸反应得到Sm(C₂O₄)Cl·3H₂O。^[2]

参考文献

^ Wendlandt, W. W. Thermal Decomposition of Rare Earth Metal Oxalates. Analytical Chemistry. 1959, 31 (3): 408–410. ISSN 0003-2700. doi:10.1021/ac60147a024.
^ Moebius, R.; Matthes, F. The exchange of oxalate ions for chloride ions of the oxalate hydrates of the rare earths and yttrium. Zeitschrift fuer Chemie, 1964. 4 (6): 234-235. ISSN: 0044-2402.