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Formation of Liesegang patterns: A spinodal decomposition scenario

T. Antal·M. Droz·J. Magnin·Z. Rácz
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Abstract

Spinodal decomposition in the presence of a moving particle source is proposed as a mechanism for the formation of Liesegang bands. This mechanism yields a sequence of band positions x_n that obeys the spacing law x_n~Q(1+p)^n. The dependence of the parameters p and Q on the initial concentration of the reagents is determined and we find that the functional form of p is in agreement with the experimentally observed Matalon-Packter law.

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T. Antal, M. Droz, J. Magnin, Z. Rácz. 1999-03-29. Formation of Liesegang patterns: A spinodal decomposition scenario. https://doi.org/10.1103/physrevlett.83.2880

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