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Advances in Materials Science and Engineering
Volume 2017 (2017), Article ID 5370289, 9 pages
Research Article

Thermodynamic Study of Tl6SBr4 Compound and Some Regularities in Thermodynamic Properties of Thallium Chalcohalides

1Institute of Catalysis and Inorganic Chemistry, ANAS, 1143 Baku, Azerbaijan
2ANAS, Nakhchivan Branch, 7000 Nakhchivan, Azerbaijan
3Azerbaijani State Oil and Industrial University, Azadlıg Av. 16/21, 1010 Baku, Azerbaijan

Correspondence should be addressed to Dunya Mahammad Babanly

Received 28 February 2017; Revised 5 June 2017; Accepted 2 July 2017; Published 22 August 2017

Academic Editor: Michael Aizenshtein

Copyright © 2017 Dunya Mahammad Babanly et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The solid-phase diagram of the Tl-TlBr-S system was clarified and the fundamental thermodynamic properties of Tl6SBr4 compound were studied on the basis of electromotive force (EMF) measurements of concentration cells relative to a thallium electrode. The EMF results were used to calculate the relative partial thermodynamic functions of thallium in alloys and the standard integral thermodynamic functions (, , and ) of Tl6SBr4 compound. All data regarding thermodynamic properties of thallium chalcogen-halides are generalized and comparatively analyzed. Consequently, certain regularities between thermodynamic functions of thallium chalcogen-halides and their binary constituents as well as degree of ionization (DI) of chemical bonding were revealed.