THE INFLUENCE OF THE CHOICE OF A SUITABLE DIVIDING SURFACE ON THE RESULTS OF SURFACE-CHARGE DENSITY CALCULATIONS

The model of site dissociation of acid surface groups is used in conne ction with the Gouy-Chapman model of the electrical double-layer for t he calculation of theoretical values of the surface charge density of spherical particles in aqueous electrolyte solutions. The influence of a parameter delta on the particle size dependence of the surface char ge density is discussed. Delta is the distance between the plane of th e location of the surface charge and the equimolecular dividing surfac e of the monolayer adsorption of gases.