How emulsions are classified ? Give one example for each type of emuls

1.	How emulsions are classified ? Give one example for each type of emulsion.
Answer» Emulsion : The colloidal system in which a dispersion of finely divided droplets of a liquid in another liquid medium is called Emulsion. Ex : Milk In Milk, the droplets of liquid fat are dispersed in water. This is an example for oil in water type emulsion. Classification of emulsions : Emulsions are classified into two classes. These are a) oil in water (O/W) and b) water in oil (W/O), (O = Oil, W = Water). These emulsions are classified as such depending on which is dispersed phase and which is dispersion medium.a) Oil in Water (O/W) type emulsions : tn this type of emulsions, the disperse d phase is and the dispersion medium is water.Ex : Milk, liquid, fat (oil) in water. Vanishing cream, fat in water. b) Water in Oil (W/O) type emulsions : In this type of e mulsions, the dispersed phase is water and the dispersion medium is oil. Ex : Stiff greases water in lubrication oils Cod liver oil water in cod liver oil Cold cream water in fat of Emulsions : Emulsions are useful `to` In the digestion of fats in intestines. `to` In washing processes of clothes and crockery. `to` In the preparation of lotions, creams, ointments in pharmaceutical and cosmetics. `to` In the extraction of metals (froth flotation). `to` In the conversion of cream into butter by churning. `to` To break oil and water emulsions in oil wells. `to` In the preparation of oily type of drugs for easy adsorption to the body.

Discussion