TYPES OF EMULSION PREPARATION

Question 1

Methods of Emulsion Preparation

Answer 1

Dry Gum/Continental
Wet Gum/English
Forbes Bottle
In situ soaps/Nascent

Question 2

4:2:1

Answer 2

Dry Gum/Continental

Question 3

For w/o

Answer 3

Dry Gum/Continental

Question 4

Oil + gum + water all at once

Answer 4

Dry gum/Continental

Question 5

The emulsifying agent (usually acacia) is mixed w/ the oil rapidly before the addition of water

Answer 5

Dry gum/Continental

Question 6

For o/w

Answer 6

Wet Gum/English

Question 7

Water + gum then gradual addition of oil

Answer 7

Wet Gum/English

Question 8

The emulsifying agent is added to the water (in which it is solution) to form mucilage & then the oil is slowly incorporated to form the emulsion

Answer 8

Wet Gum/English

Question 9

Is reserved for volatile oils or less viscous oils & is a variation of the dry gum method

Answer 9

Forbes Bottle (Bottle) Method

Question 10

alkali + oil

Answer 10

In situ soaps/Nascent

Question 11

developed two types of soaps which are calcium soaps & soft soaps

Answer 11

In situ soaps/Nascent

Question 12

Hard soap

Answer 12

NaOH

Question 13

Soft soap

Answer 13

KOH

Question 14

Soap formed in in situ soaps acts as an

Answer 14

Emulsifier

Question 15

an emulsion prepared by either the wet gum or the dry gum method can generally be increased in quality by
passing it through a hand homogenizer

Answer 15

Auxiliary method

Question 16

Are thermodynamically stable, optically transparent isotropic mixtures of a biphasic O/W system stabilized w/ surfactant

Answer 16

Microencapsulation