Question

Emulsions in Surface Chemistry????

Answer 1

Answer:

CBSE NCERT Notes Class 12 Chemistry Surface Chemistry. Emulsions are colloids where both the dispersion phase and dispersion medium are liquids. These two liquids are immiscible or partially miscible. Generally one of the liquids is water.

Answer 2

Answer:

Explanation:

Emulsions in Surface Chemistry

The colloidal solutions in which both dispersed phase and dispersion medium are liquids are called as Emulsions.

Example: Paints, dyes, milk, vanishing cream. On the basis of dispersion medium emulsions in surface chemistry are classified into two types:

Oil in Water Emulsions

In this, the oil or fat droplets are dispersed in water. Example: Milk.

Water in Oil Emulsions

In this, the water droplets are dispersed in oil. Example: Vanishing cream.

Emulsions are unstable, to increase the stability another substance called as emulsifiers are added. Example: Milk contains natural emulsion casein.

Applications of Emulsions

• These are used in syrups
• Paints
• Toothpaste
• Digestion of fats
• Pigment and dye