colloidal system
[kə-ˈlȯi-də-ləl ˈsis-təm]
nounpl: colloidal systems
sistema coloidal
1. A heterogeneous mixture consisting of a dispersed phase (particles ranging from 1 to 1000 nanometers) distributed throughout a dispersion medium, where particles do not settle and exhibit colligative properties
Milk is a common colloidal system with fat globules dispersed in water.
O leite é um sistema coloidal comum com glóbulos de gordura dispersos em água.
2. In chemistry and physics, a system where the colloidal particles interact with the dispersion medium through van der Waals forces and other non-covalent interactions
The researcher studied the stability of the colloidal system under different pH conditions.
O pesquisador estudou a estabilidade do sistema coloidal em diferentes condições de pH.
3. A mixture that appears homogeneous to the naked eye but is actually heterogeneous when viewed under a microscope or through light scattering
Paint is a colloidal system that keeps pigment particles suspended uniformly.
A tinta é um sistema coloidal que mantém as partículas de pigmento suspensas uniformemente.
This is a scientific and technical term used primarily in academic, industrial, and research contexts in both Brazil and the United States. It is fundamental to chemistry, materials science, and physics education. The term is consistent across Portuguese-speaking regions and does not have colloquial variations. Understanding colloidal systems is essential in various industries including cosmetics, pharmaceuticals, food science, and nanotechnology.
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