Influence of chargedparticles on an inhomogeneousliquid behaviour under gravityin the neighborhood of the critical point

摘要

It is shown that the addition of charged ions to a dielectric liquid in the neighborhood of the critical point will cause the correlation length to increase within both the phase transition fluctuation theory and the gravity effect theory. Thus, a nonclassical behavior is inherent to this system. The data obtained are in good agreement with relevant data on small-angle neutron scattering in the binary dielectric three- methylpyridine-heavy water solution as well as in the case where Na + Cl- and K~+ CL~- ions are added to it.