Stability of Anionic Complexes in Halide Melts of Bivalent Metals
- 作者: Tkachev N.K.1, Peshkina K.G.1
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隶属关系:
- Institute of High Temperature Electrochemistry, Siberian Branch
- 期: 卷 54, 编号 5 (2018)
- 页面: 433-441
- 栏目: Article
- URL: https://journals.rcsi.science/1023-1935/article/view/189344
- DOI: https://doi.org/10.1134/S1023193518050087
- ID: 189344
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详细
The effect of volume variation at the possible dissociation equilibria of (MX4)2– anionic complexes in halide melts of bivalent metals are analyzed in terms of the mean-sphere approximation (MSA) of the statistical theory. Within the framework of the simplified model of charged hard spheres of different diameters and valences, the complete system of equilibrium equations is obtained, i.e., equations of the law of mass action and equations of state. This system makes possible self-correlated calculations of both the equilibrium concentration of autocomplexes and the melt density. It is shown that the simplest approximation of the complex diameter as the treble diameter of simple ions overestimates the effects of volume variations when considering dissociation. Taking into account the superposition of spheres makes it possible to describe the smoother volume variations with the temperature.
作者简介
N. Tkachev
Institute of High Temperature Electrochemistry, Siberian Branch
编辑信件的主要联系方式.
Email: N.Tkachev@ihte.uran.ru
俄罗斯联邦, Yekaterinburg, 620137
K. Peshkina
Institute of High Temperature Electrochemistry, Siberian Branch
Email: N.Tkachev@ihte.uran.ru
俄罗斯联邦, Yekaterinburg, 620137
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