Formation of Liesegang patterns: A spinodal decomposition scenario

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.

RevTex, 4 pages, 4 eps figures

References in corpus (1)

• Derivation of the Matalon-Packter law for Liesegang patterns

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