亞硒酸鐠

亞硒酸鐠是一種無機化合物，化學式為Pr₂(SeO₃)₃，它的溶度積為(2.4±1.2)×10⁻³²。^[2]

製備

它可由弱酸性的氯化鐠和亞硒酸鈉在溶液中反應得到。^[3]硝酸鐠和二氧化硒在230 °C與水中進行水熱反應，可以得到亞硒酸鐠，但反應會同時生成Pr₂(SeO₄)(SeO₃)₂(H₂O)₂。^[4]

^ ^1.0 ^1.1 Joseph Wontcheu, Thomas Schleid. Ce₂[SeO₃]₃ and Pr₂[SeO₃]₃: Non-Isostructural Oxoselenates(IV) of the Light Lanthanoids. Z. Anorg. Allg. Chem. 2006, 632, 645651. doi:10.1002/zaac.200500513.
^ Aleksandrovich, A. M.; Serebrennikov, V. V. Solubility and solubility products of the selenites and sulfites of the rare earth elements. Tr. Tomskogo Gos. Univ., Ser. Khim. 1962, 154: 105-109.
^ Perkovakaya, Yu. B. Lanthanum, cerium, praseodymium, and neodymium selenites（俄文）. Metody Polucheniya Khimicheskikh Reaktivov i Preparatov, 1967. 16. 116-119. ISSN 0539-5143. CODEN MPRPAT.
^ Yaxing Wang; Huangjie Lu; Xing Dai; et al. Facile and Efficient Decontamination of Thorium from Rare Earths Based on Selective Selenite Crystallization. Inorg. Chem. 2018, 57, 4, 1880–1887. doi:10.1021/acs.inorgchem.7b02681.