Liesegang patterns: Complex formation of precipitate in an electric field

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Formation of 1D Liesegang patterns was studied numerically in precipitation and reversible complex formation of precipitate scenarios in an electric field. The Ostwald's supersaturation model reported by Büki, Kárpá ti-Smidróczki and Zrínyi (BKZ model) was extended further. In the presence of an electric field the position of the first and the last bands (Xn) measured from the junction point of the outer and the inner electrolytes can be described by the function Xn = a 1τn1/2= a2τn + a3, where τn is the time elapsed until the nth band formation, a1, a2 and a3 are constants. The variation of the total number of bands with different electric field strengths (ε) has a maximum. For higher ε one can observe a moving precipitation zone that becomes wider due to precipitation and reversible complex formation.

Original languageEnglish
Pages (from-to)291-298
Number of pages8
JournalPramana - Journal of Physics
Issue number2
Publication statusPublished - Feb 2005


  • Complex formation
  • Electric field
  • Liesegang
  • Precipitation patterns

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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