钨酸镧
| 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·mol⁻¹ | |
| 外观 | 无色晶体 | |
| 密度 | 6.60 g·cm-3[1] 6.63 g·cm−3[2] | |
| 若非注明，所有数据均出自标准状态（25 ℃，100 kPa）下。 | ||
钨酸镧是一种无机化合物，属于稀土钨酸盐，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]白色，无定型固体，难溶于水。[4]
制备
- La2O3 + 3 WO3 → La2(WO4)3
参见
参考文献
- ^ D. Gras, F. Schröder, and S. Waschk, Gmelins’Handbook of Inorganic Chemistry, 8th ed., Tungstate, Suppl. B5, 1984
- ^ Hongfei Liu, Wei Zhang, Zhiping Zhang, Xiaobing Chen. Synthesis and negative thermal expansion properties of solid solutions Yb2−xLaxW3O12 (0≤x≤2). Ceramics International. 2012-05, 38 (4): 2951–2956 [2020-01-18]. doi:10.1016/j.ceramint.2011.11.072. （原始内容存档于2018-06-29） （英语）.
- ^ S. Sumithra, A.M. Umarji. Role of crystal structure on the thermal expansion of Ln2W3O12 (Ln = La, Nd, Dy, Y, Er and Yb). Solid State Sciences. 2004-12, 6 (12): 1313–1319 [2020-01-18]. doi:10.1016/j.solidstatesciences.2004.07.023. （原始内容存档于2018-06-28） （英语）.
- ^ 马世昌. 化学物质辞典. 西安: 陕西科学技术出版社. 1999.04: 517. ISBN 7-5369-2982-X.
- ^ 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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