Emulsion

Emulsions:

Emulsions are the colloidal solutions of two immiscible liquids in which the liquid acts as the disperse phase as well as dispersion medium. For examples, milk is a naturally occurring emulsion in which the particles of liquid fats are dispersed in water, water and oil emulsion, etc.

There are two types of emulsion, namely-

1) Oil-in-water emulsions:

In this case, oil acts as the dispersed phase (small amount) and water as the dispersion medium (excess). e.g. milk

2) Water -in- oil emulsions:

In this case, water acts as the dispersed phase (small amount) and oil as the dispersion medium (excess). For examples, butter, cod liver oil, cold cream, etc are oily emulsions.

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