Selasa, 11 Mei 2010

Property of Colloid

There are many property of colloid, each had their own characteristic and definition. from this entry, we will explain to you one by one.

~Tyndall effect: it is the scattering of light trough colloid. it was first explained by the British Physicist, John Tyndall. His theory suggest that if a beam of light were to pass trough a colloid, it would scattered.

~Brownian movement: there are a continuos collision between the particles of colloid and the molecules of dispersion and this will result a random, zig zag movement to the colloidal particle. this movement is called Brownian movement.

~Electrophoresis: it is the movement of Colloidal particle on the influence of an electric field. If an electric field is applied across a colloidal solution, the particles of that solution moves to the opposite charged electrode so they could get neutralized.

~Adsorption: it is the absorbing activity in a colloid mixture which result the absorbing of colloidal particles to a surface.

~etc

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