5 Questions
What is the dispersed phase in emulsions?
A liquid that is neither soluble nor miscible with the dispersing phase
What is the purpose of preparing suspensions?
Stability, ease of administration, taste masking
What are the particles size range for colloidal dispersions?
0.5 to 10 μm
What is the dispersed phase in aerosols?
Small air bubbles throughout a solution or an emulsion
What is the dispersing phase in a colloidal dispersion?
Liquid or semi-solid
Study Notes
Emulsions
- The dispersed phase in emulsions refers to the phase that is dispersed or broken down into droplets, usually a liquid, and is scattered throughout another liquid.
Suspensions
- The purpose of preparing suspensions is to create a uniform mixture of two or more substances, where one substance is suspended in another, often for pharmaceutical or medical applications.
Colloidal Dispersions
- Colloidal dispersions have particle sizes ranging from 1 - 100 nanometers (nm) in diameter.
- The dispersing phase in a colloidal dispersion is the medium or substance in which the particles are dispersed, such as a liquid or gas.
Aerosols
- The dispersed phase in aerosols refers to the solid or liquid particles that are suspended in a gas, such as air or oxygen.
Test your knowledge of pharmaceutical dosage forms and drug delivery systems with this quiz on dispersed systems. Explore the concepts of dispersed phase, dispersion medium, and specific properties of emulsions. Prepare for your finals and enhance your understanding of this crucial aspect of pharmaceutical science.
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