亞硒酸鈰(III)
| 亞硒酸鈰(III) | |
|---|---|
| 識別 | |
| CAS號 | 15588-22-4 
|
| 性質 | |
| 化學式 | Ce2(SeO3)3 |
| 外觀 | 淺黃色棒狀晶體[1]或黃色粉末[2] |
| 密度 | 5.226 g·cm−3（無水）[1] |
| 沸點 | 605 °C（無水物分解）[3] |
| 若非註明，所有數據均出自標準狀態（25 ℃，100 kPa）下。 | |
亞硒酸鈰(III)是一種無機化合物，化學式為Ce2(SeO3)3，它的溶度積為(4±0.8)×10−29。[4]
製備
它可由弱酸性的氯化鈰和亞硒酸鈉在溶液中反應得到。[5]三氧化二鈰和二氧化硒在水中於100 °C反應，也能得到亞硒酸鈰(III)，當二氧化硒過量時，會得到酸式鹽CeH(SeO3)2；[3][2]而硝酸鈰(III)和二氧化硒在230 °C的水熱反應只會得到亞硒酸鈰(IV)。[6]
參考文獻
- ^ 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.
- ^ 2.0 2.1 Georgieva, Velyana; Stancheva, Miluvka; Genieva, Svetlana (2014). Thermal Stability of Cerium Selenite and Solubility of the System Ce2O3–SeO2–H2O at 100°C. Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry, 44(8), 1073–1079. doi:10.1080/15533174.2012.760593
- ^ 3.0 3.1 G. G. Gospodinov & M. G. Stancheva. A study of the selenites of cerium. Journal of Thermal Analysis and Calorimetry, 2003. 73, 859–865. doi:10.1023/A:1025846901134.
- ^ 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.