Emulsions - SurfaTech

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• Sterol-containing substance (cont.) - polyoxyethylene lanolin derivatives water soluble o/w emulsifier emollient property - wool alcohol cholesterol together with other alcohols w/o emulsifier no strong odor (but still require antioxidant) - Protein substances i.e. gelatin, egg yolk and casein o/w emulsifier gelatin; provide emulsion that is too fluid
Finely Divided Solids • i.e. bentonite, aluminium magnesium silicate, colloidal silicon dioxide - forming a coherent film which physical prevents coalescence of the dispersed globules - if the particles are: preferntially wetted by the aqueous phase o/w emulsion preferntially wetted by the oil phase w/o emulsion
Page 1 and 2: Emulsions BY Dr. Jarupa Viyoch Dept
Page 3 and 4: Emulsions heterogenous systems of o
Page 5 and 6: Emulsion Types 1. oil-in-water (o/w
Page 7 and 8: Tests for Identification of Emulsio
Page 9 and 10: - w/o occlusive effect influence th
Page 11 and 12: Emulsion Consistency Texture or fee
Page 13 and 14: Purpose of Emulsions Oral formulati
Page 15 and 16: - Plastic or interfacial film theor
Page 17 and 18: oil oil solid 90 90 interface most
Page 19 and 20: Microemulsions • The droplet size
Page 21 and 22: Compositions Emulsifying agents, E
Page 23 and 24: Properties 1. Compatible with the o
Page 25 and 26: Anionic Surfactants • Soaps Fatty
Page 27 and 28: • Sulfated and sulfonated compoun
Page 29 and 30: Nonionic surfactants • Low toxici
Page 31 and 32: Nonionic surfactants (cont.) • So
Page 33 and 34: • Polysorbates (cont.) - provide
Page 35 and 36: • Fatty acid polyglycol esters -
Page 37 and 38: Amphoteric surfactants • charge d
Page 39: • Semisynthetic polysaccharides -
Page 43 and 44: Continental or dry gum method • 4
Page 45 and 46: English or Wet Gum Method triturate
Page 47: Beaker Method Oil phase: heated abo

Emulsions - SurfaTech

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