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Theoretical Analysis of the Li, Ca, Ba∥F, WO4 System: Thermal Analysis of the Quaternary System LiF–BaF2–CaF2–BaWO4


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Abstract

The differentiation of the quaternary reciprocal system Li, Ca, Ba∥F, WO4 was performed based on graph theory using special software. Stable and metastable secant complexes of the system were found using a matrix of reciprocal pairs of salts. For the first time, by a set of physicochemical analysis methods (differential thermal, visual polythermal, and X-ray powder diffraction analyses), based on the method of thermal analysis of successive projections of the composition polytope, the quaternary system LiF–BaF2–CaF2–BaWO4, which is a stable complex of the quaternary reciprocal system Li, Ca, Ba∥F, WO4, was studied and the coordinates of invariant points were determined.

About the authors

P. A. Akhmedova

Samsonov High School no. 667

Author for correspondence.
Email: amalaev00@mail.ru
Russian Federation, Moscow, 117403

A. M. Gasanaliev

Institute of General and Inorganic Chemistry

Email: amalaev00@mail.ru
Russian Federation, Makhachkala, 367003

B. Yu. Gamataeva

Institute of General and Inorganic Chemistry

Email: amalaev00@mail.ru
Russian Federation, Makhachkala, 367003

P. A. Khizrieva

Dagestan State University of National Economy

Email: amalaev00@mail.ru
Russian Federation, Makhachkala, 367008

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