Colloidal solution is heterogeneous in nature and always consists of at least two phases, namely disperse phase and dispersion medium. The component present in small proportion and consisting of particles of colloidal dimensions is called the dispersed phase. The medium in which colloidal particles are dispersed is called the dispersion medium. The two phases can be solid, liquid, or gas. There are eight different types of colloidal solutions.
If colloidal solution has fluid-like appearance, it is called sol. The dispersion medium in such cases is generally liquid. Depending on the nature of medium, colloids are sometimes given special names.
|Dispexrsion medium||Name of the sol|