砷酸钐

砷酸钐
识别
CAS号 15479-87-5  checkY
性质
化学式 SmAsO4
外观 浅黄色晶体[1]
溶解性 难溶
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

砷酸钐砷酸盐,化学式为SmAsO4。它有着很好的热稳定性,其pKsp,c为22.73±0.08。[2]

制备

砷酸钐可由砷酸钠(Na3AsO4)和氯化钐(SmCl3)在溶液中反应制得:[3]

Na3AsO4 + SmCl3 → 3 NaCl + SmAsO4

参考文献

  1. ^ Kang, Dong-Hee; Schleid, Thomas. Single crystals of La[AsO4] with monazite- and Sm[AsO4] with xenotime-type structure(德文). Zeitschrift fuer Anorganische und Allgemeine Chemie (2005), 631(10), 1799-1802.
  2. ^ Firsching, F. Henry. Solubility products of the trivalent rare-earth arsenates. Journal of Chemical and Engineering Data, 1992. 37 (4): 497-499. DOI:10.1021/je00008a028
  3. ^ Gabisoniya, Ts. D.; Nanobashvili, E. M.. Synthesis of rare earth metal arsenates(俄文). Soobshcheniya Akademii Nauk Gruzinskoi SSR (1980), 97(2), 345-8. ISSN:0002-3167

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