английский METHODS OF OBTAINING AND PURIFICATION OF DISPERSED SYSTEMS

Abstract

In the article, when teaching chemistry in the 10th grade, it is considered that modern colloidal
chemistry is the science of dispersed systems and surface phenomena. In the process of teaching
chemistry, it is necessary to pay attention to the most important characteristics of the dispersed system,
which are the basis of the heterogeneity and dispersion of the processes taking place. Students should
learn that heterogeneity and the presence of two or more phases determines the presence of a phase
interface with excess energy compared to volume and, as a result, specific properties and phenomena
on the surface. Defines the surface area as a measure of the separation of the dispersed phase and the
proportion of surface properties in the overall properties of the system.