钨酸镧

钨酸镧是一种无机化合物化学式为La2(WO4)3。它是单斜晶系晶体,空间群C2/c,晶胞参数a=7.871, b=11.837, c=11.686 A。[3]

钨酸镧
识别
CAS号 13939-41-8  
性质
化学式 La2(WO4)3
摩尔质量 1021.33 g·mol¹
外观 无色晶体
密度 6.60 g·cm-3[1]
6.63 g·cm−3[2]
若非注明,所有数据均出自一般条件(25 ℃,100 kPa)下。

制备

钨酸镧可由氧化镧三氧化钨在1100℃反应得到:[4]

La2O3 + 3 WO3 → La2(WO4)3

参考文献

  1. D. Gras, F. Schröder, and S. Waschk, Gmelins’Handbook of Inorganic Chemistry, 8th ed., Tungstate, Suppl. B5, 1984
  2. Hongfei Liu, Wei Zhang, Zhiping Zhang, Xiaobing Chen. . Ceramics International. 2012-05, 38 (4): 2951–2956 [2020-01-18]. doi:10.1016/j.ceramint.2011.11.072 (英语).
  3. S. Sumithra, A.M. Umarji. . Solid State Sciences. 2004-12, 6 (12): 1313–1319 [2020-01-18]. doi:10.1016/j.solidstatesciences.2004.07.023 (英语).
  4. Melitta Gärtner, Dirk Abeln, Allan Pring, et al. Synthesis, Structure, and Reactivity of Novel Lanthanum Tungstates. Journal of Solid State Chemistry, 1994. Vol.111, Iss.1: 128-133
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