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Journal of Structural Chemistry

2013 year, number Приложение 2

KINETICS OF THE FORMATION OF LIESEGANG RINGS

V. I. Kuz’min1, A. F. Gadzaov1, D. L. Tytik2, S. A. Busev2, A. A. Revina2, V. V. Vysotskii2
1Moscow State Technical University of Radio Engineering, Electronics, and Automatics, Moscow
2A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow
Keywords: solutions, Liesegang rings, critical points, gels, bound water, magnesium chloride salts, nanoparticles, diffusion equation, anamorphosis, physicochemical periodic processes

Abstract

The kinetics of the formation of Liesegang rings is considered and they are classified. The relationship between the position of the propagating diffusion front and the moments of the formation of Liesegang rings is shown. In order to describe the formation processes of the Liesegang rings a generalized model based on the diffusion equation hierarchy is proposed. The kinetics of changes in the dispersed phase sizes at the initial stage of the formation of Liesegang rings is studied.