Lab #4 Emulsion

Question 1

Use of Calamine, Zinc oxide

Answer 1

Astringent (constriction of skin), protective, antiseptic

Question 2

Use for Avobenzone and Oxybenzone

Answer 2

Sunscreen

Question 3

Use for Almond Oil

Answer 3

Oil phase of emulsion

Question 4

Use for Acacia

Answer 4

Emulsifying agent

Question 5

95% alcohol

Answer 5

Preservative

Question 6

Rose water

Answer 6

the water phase of emulsion

Question 7

4:2:1 dry gum method

Answer 7

4 parts oil
2 parts water
1 part gum (acacia)

Question 8

4:2:1 wet method

Answer 8

First 2 parts water + 1 part gum
then 4 parts oil

Question 9

Preparation of primary emulsion

Answer 9

1. Add 4 parts OIL and 1 part GUM
2. 2 parts WATER
3. Titruate until the primary emulsion is creamy white and makes cracking sounds
4. Add liquid ingredients (Zinc oxide and calamine) before solid
5. lastly diluted alcohol (preservative)

Question 10

Auxiliary Label:

Answer 10

Shake well
For external use only

Question 11

Packaging and storage

Answer 11

Light-resistant container @ room temeprature

Question 12

BUD

Answer 12

14 days -> no stability information for the formulation

Question 13

Counseling

Answer 13

SIG: Apply 30 min before exposure then every 4 hours during outgoing
Side effects: call the doctor when skin irritation
Storage: Keep away from children, keep at room temperature
BUD: Discard after 14 days