Two Phase System Mixtures

Question 1

Aqueous liquid preparation which contains

suspended (suspensoid),
insoluble,
solid substance

Answer 1

Mixtures

Question 2

Particle size of mixtures

Answer 2

Particle size > 0.5 µm

Question 3

The insoluble substance may be held in suspension by the use of suitable suspending or thickening agent since the insoluble substance does not make the mixture very viscous.

Answer 3

Mixture

Question 4

Must be in a very finely divided state
and it must be uniformly distributed throughout the preparation

Answer 4

Insoluble substance

Question 5

Very finally divided state (insoluble substance) is accomplished by the use of :

Answer 5

• Colloid Mills
• Special method if precipitation and suspending agent

Question 6

There is a need of suspending or thickening agent since the insoluble substance does not make the mixture very viscous

Answer 6

Mixture

Question 7

Reasons for having the insoluble substance in the finer state of subdivision

Answer 7

• The more active they become as adsorbent and protectives when in contact with the inflamed areas
• ** suspended more readily and settle out much slowly** than large particles, thus enabling the patient to obtain uniform doses of suspended particle
• To increase palatability of the preparation with the use of colloidal suspending agent

Question 8

Size of lotion

Answer 8

Colloidal dispersion between 1.0 nm and 0.5 µm

Question 9

Particle size of magma and gel

Answer 9

0.5 µm to 10 µm

Question 10

Particle size of mixture

Answer 10

> 0.5 µm

Question 11

Rapid diffusion, invisible in electron microscope

Answer 11

Ordinary ions
<1.0nm

Molecular dispersion

Question 12

Diffuse slowly visible in electron microscope, ultra microscope

Answer 12

Colloidal Ag sol
1.0nm — 0.5 µm

Colloidal dispersion

Question 13

Don’t diffuse visible under microscope

Answer 13

Suspension and Emulsion
> 0.5 µm

**Coarse dispersion **

Question 14

Category of chalk mixture

Answer 14

Medicated mixture

Question 15

Synonyms of chalk mixture

Answer 15

Mixture de Creta
Mistura Cratae

Question 16

A whitish mixture containing suspended insoluble, solid substance

Answer 16

Chalk mixture

Question 17

Uses of chalk mixture

Answer 17

Antacid
Antidiarrhea Agent

Question 18

Formulation of chalk mixture

Answer 18

Precipitated chalk (CaCO3)
Glycerin
Cinnamon water
Purified water

Question 19

Label of chalk mixture

Answer 19

White label with shake well in 15 mL Flint bottle

Question 20

Method of preparation used for chalk mixture

Answer 20

Simple hydration

Question 21

Use of glycerin in chalk mixture

Answer 21

Viscosity modifier
Or
Thickening agent

Question 22

What is the solid and soluble substance in the chalk mixture?

Answer 22

Precipitated chalk

Question 23

Vehicle of chalk mixture

Answer 23

Purified water

Question 24

Are aqueous liquid preparations that contains suspended and soluble solid substances intended for internal use.

In pharmacy, it is a preparation consisting of a liquid, holding an insoluble medicinal substance in a suspension by means of acacia, sugar or some other *viscid material. *

Answer 24

Mixture