THE ADSORPTION OSCILLATION OF ADMIXTURE IONS AS A POSSIBLE REASON FORTHE EXTREMELY HIGH VALUES OF A LOW-FREQUENCY DIELECTRIC-DISPERSION

Traditional theoretical models, which ignore the influence of admixtur e ions, have given rise to an erroneous concept concerning the presenc e of the limiting value (Delta epsilon(max)) of the contribution of th e dispersed phase Delta epsilon to the permittivity of a suspension of nonconducting particles. As a result, a dramatic discrepancy evolves between theory and experiment, where extremely high (exceeding Delta e psilon(max)) Delta epsilon values are recorded. It is shown that extre mely high Delta epsilon values may result from the adsorption oscillat ion of common and admixture counterions of the quasi-equilibrium part of the electrical double layer. A low (albeit nonzero) concentration o f an admixture (for example, H+ or OH- ions) does not prevent Delta ep silon from achieving extremely high values. The results of this work d emonstrate that the extension of current theoretical models to the cas e of multiion (nonbinary) dispersion media is one of the most urgent a nd important problems in the theory of low-frequency polarization of t he double layer.