Chemistry > Surface Chemistry > 7.0 Colloidal System

  Surface Chemistry
    1.0 Introduction
    2.0 Adsorption
    3.0 Factors affecting adsorption of gases by solids
    4.0 Adsorption Isotherms
    5.0 Applications of Adsorption
    6.0 Types of Solutions
    7.0 Colloidal System
    8.0 Coagulation of colloidal solutions
    9.0 Emulsions
    10.0 Catalysis
    11.0 Zeolites as shape-selective catalysts
    12.0 Enzyme as catalysts

7.1 Different Colloidal Systems

Dispersed Phase

Dispersion Medium

Colloidal System

Examples

Gas

Gas

One-Phase System

-

Liquid

Gas

Aerosol of liquids

Fogs, clouds, mists

Solid

Gas

Aerosol of solids

Smoke, volcanic dust

Gas

Liquid

Foam or froth

Soap suds, whipped cream, foam

Liquid

Liquid

Emulsions

Milk, emulsified oils, medicines

Solid

Liquid

Sols

Paints, starch in water, gold sol, ink

Gas

Solid

Solids foam

Pumice stone, styrene rubber

Liquid

Solid

Gels

Cheese, butter, boot polish

Solid

Solid

Solid sols

Ruby glass, some gem stones

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