Recognition of simplexes with immiscibility in ionic salt systems on the basis of phase trees for design of electrolytes for chemical current sources

• Published in: Russian journal of inorganic chemistry Vol. 55; no. 1; pp. 112 - 129
• Main Authors: Egortsev, G. E., Garkushin, I. K., Istomova, M. A., Garkushin, A. I.
• Format: Journal Article
• Language: English
• Published: Dordrecht SP MAIK Nauka/Interperiodica 2010
• Subjects: Chemistry; Chemistry and Materials Science; Inorganic Chemistry; Physicochemical Analysis of Inorganic Systems; Immiscibility Region; RbBr; Reciprocal System; NaBr; Crystallization Field
• ISSN: 0036-0236; 1531-8613
• DOI: 10.1134/S0036023610010213

An algorithm is developed for searching secant elements and simplexes having immiscibility in multinary systems; phase trees of systems are the only initial data set required for the implementation of this algorithm. The Li,Na,Rb||F,Br four-component reciprocal system is used for testing the algorithm. As a result of experimental studies, immiscibility regions are demarcated inside the Li,Rb||F,Br ternary reciprocal system, in LiF-NaF-RbBr and LiF-NaBr-RbBr stable secant triangles, and in the LiF-LiBr-NaBr-RbBr stable tetrahedron. The low-melting alloy corresponding to the four-component invariant point, with a melting temperature of 272°C, may be recommended for use as an electrolyte in chemical current sources.