Adjectivecolloid (comparative more colloid, superlative most colloid) Positive colloid Comparative more colloid Superlative most colloid
From Wiktionary under the GNU Free Documentation License. A colloid is a substance microscopically dispersed evenly throughout another one. A colloidal system consists of two separate phases: a dispersed phase (or internal phase) and a continuous phase (or dispersion medium). A colloidal system may be solid, liquid, or gaseous. Many familiar substances are colloids, as shown in the chart below. As well as these naturally occurring colloids, modern chemical process industries utilize high shear mixing technology to create novel colloids. The dispersed-phase particles have a diameter of between approximately 5 and 200 nanometers. Such particles are normally invisible to an optical microscope, though their presence can be confirmed with the use of an ultramicroscope or an electron microscope. Homogeneous mixtures with a dispersed phase in this size range may be called colloidal aerosols, colloidal emulsions, colloidal foams, colloidal dispersions, or hydrosols. The dispersed-phase particles or droplets are affected largely by the surface chemistry present in the colloid. Some colloids are translucent because of the Tyndall effect, which is the scattering of light by particles in the colloid. Other colloids may be opaque or have a slight color. Colloidal systems (also called colloidal solutions or colloidal suspensions) are the subject of interface and colloid science. This field of study was introduced in 1861 by Scottish scientist Thomas Graham. From Wikipedia under the
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Q. He is scheduled for surgery anytime soon. I want to find out his chances of being alive. Will he take a long time to recuperate. Will this surgery affect his memory in any manner. How long will it take to get back to normal life... Asked by ispartha - Sun Jan 24 23:04:55 2010 - - 1 Answers - 0 Comments From Yahoo Answer Search: "colloid" |
