Refractive Indices and Molar Refractivities of Molten Rare-Earth Trichlorides and Their Mixtures with Alkali Chlorides

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• 作者：Victor A. Kochedykov ; Vladimir A. Khokhlov
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2017
• 出版时间：January 12, 2017
• 年：2017
• 卷：62
• 期：1
• 页码：44-51
• 全文大小：483K
• ISSN：1520-5134

文摘

New experimental data on the refractive indices and molar refractivities of molten cerium, neodymium, samarium, and gadolinium trichlorides and CeCl₃–ACl, SmCl₃–ACl, Gd₃Cl–ACl (A = Na, 0.5Na–0.5K, K, and Cs) mixtures depending on the temperature and composition are reported. It is shown that the relative deviations of the molar refractivity of mixtures from their magnitudes inherent to the hypothetic ideal solutions increase as the radii of alkali metal cations rises. The difference in variation of the Ln³⁺-ions electron polarizability with the atomic number or ionic radius is revealed for cerium and yttrium subgroups of the lanthanide row.