colloidal system


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colloidal system

[kə′lȯid·əl ′sis·təm]
(chemistry)
An intimate mixture of two substances, one of which, called the dispersed phase (or colloid), is uniformly distributed in a finely divided state through the second substance, called the dispersion medium (or dispersing medium); the dispersion medium or dispersed phase may be a gas, liquid, or solid. Also known as colloidal dispersion; colloidal suspension.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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As such, colloidal systems comprised of waxes in water exist not directly as emulsions but instead as dispersions of wax particles suspended in aqueous solutions.
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A comparison with such colloidal systems can be useful to further point out the advantages of our colloid.
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The rheological behavior of fullerene-based colloidal systems was examined at varying controlled shear rate mode from 0.1 to 100 [s.sup.-1] at 298 K.
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After a general introduction to the required mathematics in Chapter 1 and to colloidal systems in Chapter 2, Chapters 3 and 4 discuss the foundations and applications of electrostatics.
Electrokinetic and Colloid Transport Phenomena
Many other factors determine the color of a colloidal system. Due to the scattering and absorption of light, color is affected not only by the nature of the dispersed phase and the dispersion medium, but also by the degree of particle dispersion, shape and structure.
Colloidal dispersions: an overview: the cosmetic scientist must consider various repellent and attractive forces involved in these systems
One of the fields of great application of DLHM is the study of colloidal systems, both dynamic and static.
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Similarly, Terao and Nakayama (1999) studied the crystallization of 2-D colloidal systems by means of Monte Carlo simulations.
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Among the topics covered are: mathematical preliminaries, colloidal systems, electrostatics, electric double layer, electroosmosis and stream potential, electrophoresis and sedimentation potential, and coagulation and colloid deposition.
Electrokinetic and Colloid Transport Phenomena
Most foods are complex colloidal systems with a defined microstructure.
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The device is especially suited to the measurement of colloidal systems and macromolecules in solution as well as more traditional applications found in the chemical industry.
High performance particle sizer: compact and robust
Applications such as emulsions (pharmaceutical and others), dispersions, and suspensions and CMP (chemical mechanical planarization) slurries all share one common problem: a few oversize particles in any of these mostly submicron colloidal systems spell disaster.
Particle sizing gets serious: uniform particle sizes are critical to industries that depend on systems to identify high quality slurry batches and flag the deviants. (Analytical Instruments)

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