Emulsions

Question 1

Define emulsion

Answer 1

A biphasic liquid preparation containing two immiscible liquids which are made miscible by adding emulsifying agent

Question 2

What are the advantages of emulsions ?

Answer 2

Question 3

What are the disadvantages of emulsions ?

Answer 3

Question 4

How to classify emulsions ?

Answer 4

According to route of administration
According to types of emulsion
According to particle size

Question 5

What is the classification according to the route of administration ?

Answer 5

Question 6

What is the classification according to types of emulsions?

Answer 6

Question 7

What is the classification according to particle size ?

Answer 7

Question 8

What is the theory of emulsification ?

Answer 8

Question 9

What is used in the formulation of the emulsion ?

Answer 9

Question 10

Concentration of preservatives required in an emulsion depends on what ?

Answer 10

Question 11

Give example of preservatives

Answer 11

Question 12

Define microemulsions

Answer 12

Dispersion of insoluble liquids in a second liquid that appear clear and homogenous to the naked eye

Question 13

What are microemulsions also called ?

Answer 13

Transparent emulsion
Solubilized system
Micellar solution

Question 14

What are the disadvantages of microemulsions ?

Answer 14

Question 15

What are the applications of microemulsions?

Answer 15

Question 16

What are the reasons for phase inversion ?

Answer 16