Koloidem

Koloidem refers to a colloidal dispersion, a mixture where one substance of microscopically dispersed insoluble particles is suspended throughout another substance. The dispersed-phase particles have a size between approximately 1 and 1000 nanometers. Unlike a true solution, where solutes are dissolved at the molecular level, the particles in a colloid are large enough to scatter light, a phenomenon known as the Tyndall effect. Examples include milk, fog, and smoke. The dispersed particles do not settle out over time, unlike suspensions, because the random motion of molecules in the dispersing medium keeps them suspended. Colloids can exhibit properties such as electrical charge, which can prevent aggregation. They are broadly classified based on the physical state of the dispersed phase and the dispersing medium, leading to types like sols, gels, emulsions, and foams. Many biological systems and industrial processes rely on the unique properties of colloids.