Study of the Behavior of Gallium in Aqueous Solutions of Electrolytes

DOI

10.2991/isees-19.2019.160How to use a DOI?

Keywords

gallium; electrolyte; liquid metal dropping electrode; dissolution; reaction rate constant; activation energy.

Abstract

Numerical values of the reaction rate constants and activation energies were obtained for the system gallium - aqueous solutions of electrolytes with respect to the nature of the electrolyte and aggregation state of metal. It is shown that dissolution in sulfuric acid media is characterized by low velocity constants, which increase in transition to hydrochloric acid media. Under conditions close to the potential conditions for a dropping gallium electrode, interactions occur in the transition region. The stage of chemical interaction for crystalline gallium under similar conditions determines the total rate. The average activation energy upon dissolution of crystalline gallium under considered conditions is 2-3 times higher than the values obtained upon dissolving molten gallium, and it varies from 30 to 90 kJ/mol.

Copyright

© 2019, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - N.V. Nemchinova
AU  - A.A. Yakovleva
PY  - 2019/08
DA  - 2019/08
TI  - Study of the Behavior of Gallium in Aqueous Solutions of Electrolytes
BT  - Proceedings of the International Symposium "Engineering and Earth Sciences: Applied and Fundamental Research" dedicated to the 85th anniversary of H.I. Ibragimov (ISEES 2019)
PB  - Atlantis Press
SP  - 24
EP  - 28
SN  - 2590-3217
UR  - https://doi.org/10.2991/isees-19.2019.160
DO  - 10.2991/isees-19.2019.160
ID  - Nemchinova2019/08
ER  -