亞硒酸釤
亞硒酸釤 | |
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識別 | |
CAS號 | 31935-32-7 |
性質 | |
化學式 | Sm2(SeO3)3 |
外觀 | 淺黃色針狀晶體(無水)[1] |
若非註明,所有數據均出自標準狀態(25 ℃,100 kPa)下。 |
亞硒酸釤是一種無機化合物,化學式為Sm2(SeO3)3,它的溶度積為(2.6±1.1)×10−32。[2]
製備
它可由氧化釤和二氧化硒在水中反應得到,其四水合物在100~310 °C脫水,可以得到無水物。[3]硝酸釤和二氧化硒在230 °C與水中進行水熱反應,可以得到亞硒酸釤,但反應會同時生成Sm2(SeO4)(SeO3)2(H2O)2。[4]
參考文獻
- ^ Ina Krügermann; Mathias S. Wickleder; Joseph Wontcheu; Thomas Schleid. The Unique Crystal Structure of the Triclinic Samarium(III) Oxoselenate(IV) Sm2[SeO3]3. Z. Anorg. Allg. Chem. 2006, 632, 901904. doi:10.1002/zaac.200600016.
- ^ 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.
- ^ G. G. Gospodinov; M. G. Stancheva (2004). Formation and thermal stability of selenites and hydrogen selenites of samarium. Journal of Thehrmal Analysis and Calorimetry, 78(3), 1057–1063. doi:10.1007/s10973-004-0470-z
- ^ 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.