A
mixture in which one substance is divided into minute particles (called
colloidal particles) and dispersed throughout a second substance. The mixture
is also called a colloidal system, colloidal solution, or
colloidal dispersion. Colloid science
is the study of systems
involving small particles of one substance suspended in another. Suspensions
in liquids form the basis of a wide variety of systems
of scientific and technological importance, including paints, ceramics,
cosmetics, agricultural sprays, detergents, soils, biological cells, and many food preparations.
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