FINAL 05 - Emulsions (Mineral Oil Emulsion)

Question 1

A 2 phase system in which one liquid is dispersed in the form of small globules throughout another liquid in which it is immiscible

Answer 1

Emulsion

Question 2

3 components of emulsions (IEE)

Answer 2

Internal phase, External phase, Emulsifying agent

Question 3

Emulsion diluted with water/aqueous preparation

Answer 3

O/W emulsion

Question 4

Emulsion diluted with oleaginous/oil miscible liquid

Answer 4

W/O emulsion

Question 5

Phase that contains water-soluble drugs, preservatives, coloring, and flavoring agents

Answer 5

Aqueous phase

Question 6

Phase that contains fixed/volatile drugs (oil, oil-soluble vitamins, and antiseptic)

Answer 6

Oil phase

Question 7

Added to prevent auto-oxidation of the oil and rancidity or destruction of any vitamin resent

Answer 7

Antioxidant

Question 8

Includes carbohydrates and gelatins; produce O/W emulsions (Types of emulsifying agents)

Answer 8

Natural emulsifying agents

Question 9

Examples include stearyl alcohol, cetyl alcohol, and glyceryl monostearate; produce O/W emulsions (Types of emulsifying agents)

Answer 9

High molecular weight alcohols

Question 10

__________ is employed in externally used emulsion; produce W/O emulsions

Answer 10

Cholesterol

Question 11

Includes colloidal clays such as bentonite, magnesium hydroxide, and aluminum hydroxide; produce O/W emulsions (Types of emulsifying agents)

Answer 11

Finely divided solids

Question 12

May be anionic, cationic, or nonionic (Types of emulsifying agents)

Answer 12

Synthetic (Wetting agents)

Question 13

Includes triethanolamine oleate and sodium lauryl sulfate (Types of synthetic emulsifying agents)

Answer 13

Anionic

Question 14

Includes benzalkonium chloride (Types of synthetic emulsifying agents)

Answer 14

Cationic

Question 15

Includes lecithin (Types of synthetic emulsifying agents)

Answer 15

Amphoteric

Question 16

Includes sorbitan esters, polyethylene glycol 400 monostearate, and polyoxyethylene sorbitan esters (Types of synthetic emulsifying agents)

Answer 16

Nonionic

Question 17

May be O/W or W/O (Types of emulsions)

Answer 17

Simple

Question 18

May be O/W/O or W/O/W (Types of emulsions)

Answer 18

Multiple

Question 19

Most stable emulsion; the dispersed phase is in very small globules (Types of emulsions)

Answer 19

Microemulsion

Question 20

Emulsifying agent and water is added first, then oil (Methods of emulsion preparation)

Answer 20

English/Wet method

Question 21

Emulsifying agent and oil is added first, then water (Methods of emulsion preparation)

Answer 21

Continental/Dry method

Question 22

Shaking vigorously (Methods of emulsion preparation)

Answer 22

Forbes/Bottle method

Question 23

Hand homogenizer (Methods of emulsion preparation)

Answer 23

Auxiliary method

Question 24

Calcium soap and soft soap (Methods of emulsion preparation)

Answer 24

Nascent/In situ soap method

Question 25

100 A (10 microns) (Methods of emulsion preparation)

Answer 25

Microemulsion

Question 26

Temporary separation of the 2 phases (Problems encountered in emulsions)

Answer 26

Creaming

Question 27

Total separation of the 2 phase with coalescence (Problems encountered in emulsions)

Answer 27

Cracking

Question 28

Evaporation of water; O/W becomes W/O (Problems encountered in emulsions)

Answer 28

Phase inversion

Question 29

Add drop of water, O/W (Methods of identifying emulsions)

Answer 29

Drop dilution test

Question 30

Oil soluble - Sudan red, W/O; Water soluble - Amaranth green, O/W (Methods of identifying emulsions)

Answer 30

Dye solubility test

Question 31

Water conduct electricity, O/W (Methods of identifying emulsions)

Answer 31

Electronic conductivity test

Question 32

Oil can absorb UV light, W/O (Methods of identifying emulsions)

Answer 32

Fluorescence test

Question 33

Mineral oil emulsion (Category)

Answer 33

Oral emulsion

Question 34

Mineral oil emulsion (Synonym)

Answer 34

Liquid petrolatum emulsion

Question 35

Mineral oil emulsion (Use)

Answer 35

Lubricating cathartic

Question 36

Mineral oil emulsion is employed as a lubricating cathartic with a usual dose of __________

Answer 36

30 mL

Question 37

__________ is used as a cathartic in Mineral oil emulsion

Answer 37

Mineral oil

Question 38

__________ is used as a suspending or emulsifying agent Mineral oil emulsion

Answer 38

Acacia

Question 39

__________ is used as a sweetening agent in Mineral oil emulsion

Answer 39

Syrup

Question 40

__________ is used as a flavorant in Mineral oil emulsion

Answer 40

Vanillin

Question 41

__________ is used as a preservative in Mineral oil emulsion

Answer 41

Alcohol

Question 42

Emulsion came from the word __________ which means to 'milk out'

Answer 42

Emulgio

Question 43

Refers to the dispersed phase

Answer 43

Internal phase

Question 44

Refers to the dispersion medium

Answer 44

External phase

Question 45

Emulsion that has an oleaginous internal phase and aqueous external phase

Answer 45

O/W emulsion

Question 46

Emulsion that has an aqueous internal phase and oleaginous external phase

Answer 46

W/O emulsion

Question 47

3rd component present in an emulsion

Answer 47

Emulsifying agent

Question 48

Exposed surface of liquids tend to contract (Theories on emulsification)

Answer 48

Surface tension theory

Question 49

They facilitate the breaking up of larger molecules into smaller ones, having less tendency to coalesce

Answer 49

Surfactants

Question 50

Certain emulsifying agents orient themselves about and within a liquid (Theories on emulsification)

Answer 50

Oriented-wedge theory

Question 51

Emulsifying agent surrounds the droplets of the internal phase as a thin layer of film (Theories on emulsification)

Answer 51

Plastic/Interfacial film theory

Question 52

Viscosity of an emulsion aids emulsification (Theories on emulsification)

Answer 52

Viscosity theory

Question 53

Mineral oil emulsion (2 labels) (WS)

Answer 53

Official white label, Shake well label

Question 54

Mineral oil emulsion (Container)

Answer 54

30 mL wide-mouthed amber bottle