A New Type of Invariant Points in Multicomponent Diagrams of Solubility According to the Example of the Na+,Ni2+//Cl−,\({\text{SO}}_{{\text{4}}}^{{{\text{2}} - }}\)–H2O System
N. A. Charykov, D. I. Subbotin, V. A. Keskinov, K. N. Semenov, A. A. Guryeva, V. P. German, A. A. Rostokin
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引用次数: 0
Abstract
The authors describe a new type of invariant points on isothermal-isobaric solubility diagrams of multicomponent systems. Such invariant points are directly related to the crystallization of solid phases based on pure solvents at temperatures below those of the latter in single-component systems. The type of nonvariant processes that occur at the indicated points during the isothermal evaporation of the solvent are considered, along with the stability of monovariant equilibria in the immediate vicinity of nonvariant points. Typical examples of such non-variant equilibria are presented using three- and four-component (mutual) water-salt systems as an example.
期刊介绍:
Russian Journal of Physical Chemistry A. Focus on Chemistry (Zhurnal Fizicheskoi Khimii), founded in 1930, offers a comprehensive review of theoretical and experimental research from the Russian Academy of Sciences, leading research and academic centers from Russia and from all over the world.
Articles are devoted to chemical thermodynamics and thermochemistry, biophysical chemistry, photochemistry and magnetochemistry, materials structure, quantum chemistry, physical chemistry of nanomaterials and solutions, surface phenomena and adsorption, and methods and techniques of physicochemical studies.