Simulation of a crossover from the precipitation wave to moving Liesegang pattern formation

Ferenc Izsák, I. Lagzi

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Model simulations to investigate the precipitation wave phenomenon and a crossover from the precipitation wave to moving Liesegang patterns were performed. The chemical scheme contains four chemical species via the interaction of precipitation and redissolution (complex formation), in which the precipitation reaction term was based on Ostwald's supersaturation theory. In this article, for the first time, all the features and behaviors of the heterogeneous traveling waves are reproduced, which were observed experimentally in the work of Zrinyi et al. (Zrínyi, et al. J. Phys. Chem. 1991, 95, 1618.). The detailed investigation of the pattern formation showed three possible states of the system, which depend on the initial concentration of the inner and outer electrolytes, respectively. These are the precipitation wave (single moving precipitation band), the moving Liesegang pattern (moving precipitation bands), and the state where these two patterns coexist.

Original languageEnglish
Pages (from-to)730-733
Number of pages4
JournalJournal of Physical Chemistry A
Volume109
Issue number5
DOIs
Publication statusPublished - Feb 10 2005

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crossovers
simulation
Supersaturation
Electrolytes
supersaturation
traveling waves
electrolytes
interactions

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

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Simulation of a crossover from the precipitation wave to moving Liesegang pattern formation. / Izsák, Ferenc; Lagzi, I.

In: Journal of Physical Chemistry A, Vol. 109, No. 5, 10.02.2005, p. 730-733.

Research output: Contribution to journalArticle

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