Transcription of Emulsions
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Emulsions
Emulsions BY. Dr. Jarupa Viyoch Dept. of Pharmaceutical Technology (2106). Scope Definition Composition Type of Emulsions Determination Test Selection of ingredients emulsion consistency emulsion theory Emulsifying agent Preparation HLB system Stability Emulsions heterogenous systems of one liquid dispersed throughout another in the form of droplets usually exceeding micrometre in diameter Compositions Internal/Discontinuous/Dispersed phase External/Continuous phase Emulsifying agent Forms Liquids Semisolids emulsion Types 1. oil-in-water (o/w).
Emulsion Theory • To explain how emulsifying agents act in promoting emulsification and in maintaining the stability of the resulting emulsion - Surface tension theory (important in initial formation)The force causing each liquid to resist
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