Zinc oxide Flashcards
1
Q
Chemical Formula
A
ZnO
1
Q
Can be found in:
A
- Rubbers
- Plastics
- Ceramic
- Glass
- Cement
- Lubricant
- Paints
- Ointments
- Adhesives
- Sealants
- Pigments
- foods
- Batteries
- Ferrites
- Fire Retardants
- First-aid tapes
2
Q
Paste vs Ointment
A
Pastes are very thick and stiff;
whereas, ointments are soft
semisolid preparations.
Pastes are less greasy; whereas, ointments are greasy.
Pastes are generally applied with a spatula or are spread on lint; whereas, ointments are simply applied on
the skin
3
Q
What is Levigation?
A
What: the process of grinding an insoluble substance to a fine powder, while wet.
How: The material is introduced into the mill together with water, in which the powdered substance remains suspended, and flows from the mill as a turbid liquid or thin paste, according to the amount of water employed
4
Q
A
