A general algorithm using Mathematica 2.0 for calculting dlvo potential interactions and stability ratios in spherical colloidal particle systems

  • Authors:

  • J. A. Guaregua M.;E. Squitieri;V. Mujica

  • Affiliations:

  • (Correspd. Tel.:/Fax: +58 241 868 82 29/ E-mail: guaregua@uc.edu.ve) Universidad de Carabobo, Facultad de Ciencias y Tecnologí/a, Dpto. de Quí/mica, Apartado 3366, Bá/rbula 2005 - Vale ...;Universidad Central de Venezuela, Facultad de Ciencias, Escuela de Quí/mica, Apartado 47102, Caracas 1020-A, Venezuela;Universidad Central de Venezuela, Facultad de Ciencias, Escuela de Quí/mica, Apartado 47102, Caracas 1020-A, Venezuela

  • Venue:
  • Journal of Computational Methods in Sciences and Engineering - II Congress of Theoretical and Computational Physical Chemistry, Choroni, Venezuela, 2008
  • Year:
  • 2009

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Abstract

A general and numerical algorithm using Mathematica v. 2.0 is presented for calculating the stability ratios and interaction potential energy between two spherical colloidal particles according to the DLVO theory. The algorithm is applicable to electrolytes with any number of ionic species having any valence state and superficial potentials on the particles. The algorithm is versatile to allow change the values of the parameters that characterizes the colloidal system and is suitable to plot the stability curves for a given set of radii, Hamaker constant, superficial potential, electrolyte concentration range, and electrolyte valence. The algorithm was implemented on two models of DLVO interaction potential and is appropriate for analysis of coagulation tendencies of spherical colloidal particles.