ABSTRACT
Colloidal dispersions and their chemistry play an important role in nature and in industrial applications. It is difficult to find products and processes in the chemical or related industries in which knowledge of colloid science is not applied to a greater or lesser extent. Solid-liquid dispersions are widely used f9r paints, pesticides, clay minerals, ceramics, detergents, cosmetics, pharmaceuticals, food, and many other products. A general classification of colloidal systems according to the properties of the dispersed systems is very difficult, because the properties can vary over a broad range. Voyutsky [1] describes the most important criteria, for the classification of colloidal dispersions. The degree of dispersion, the state of the dispersed phase and that of the dispersion medium, the interaction between the dispersed phase and the dispersion medium, and the interaction between the particles are the main criteria.
