草酸釤

草酸釤是釤的草酸鹽，化學式為Sm₂(C₂O₄)₃，其水合物可由硝酸釤和草酸在水溶液中反應得到：

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

它的十水合物受熱分解得到無水物，繼續加熱得到氧化釤。^[1]它和鹽酸反應得到Sm(C₂O₄)Cl·3H₂O。^[2]

參考文獻

^ 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.