5 Written questions
5 Matching questions
- Lanolin is a (w/o or o/w) emulsion with ____% water.
- Sorbic Acid and glycerin is an important component of?
- what is the use of emulsifying agents?
- Define: humectant and give 2 examples.
- How many components are required to make an emulsion and what are they?
- a water:oil:emulsifying agent (eg. acacia)
- b Capsules
- c It prevents surface evaporation
- d they reduce the surface tension between the wate and oil and allow the two to mix.
- e water-oil emulsion with 25% water
5 Multiple choice questions
- Opposite of osmosis using high pressure to move from region of high solvent concentration to region of low solvent concentration.
- wet gum= adding water to acacia
dry gum = adding oil to acacia
- It contains pyrogens which are microbial compounds increase body temperature.
- Ans: A do not use purified water for opthalmic solutions
5 True/False questions
what is the nacent method? → equal amounts of oil, water, acacia
Water soluble bases are made from this important compound: → Capsules
what is the bottle method of emulsification and what is it's ratio? → they reduce the surface tension between the wate and oil and allow the two to mix.
Describe the anti-microbial properties of syrups. → the near saturation of syrups prevent microbial growth thereby no parabens are needed as antimicrobials
which type of water is best for preparing parenteral solutions? → they reduce the surface tension between the wate and oil and allow the two to mix.