July 19, 2024

Classification of Emulsions

Classification of Emulsions: Pharmaceutics Notes, PDF


  • Oil in Water O/W Type
  • Water in Oil W/O Type
  • Multiple Emulsions
    • O/W/O
    • W/O/W
  • Macroemulsion
  • Microemulsion
  • Nanoemulsion

An emulsion is a type of colloidal mixture where normally immiscible liquids are combined in a way that maintains their unique chemical identities. In general, there are two parts of an emulsion:

Continuous Phase: the liquid portion of an emulsion in which another liquid is dispersed

Dispersed Phase: the liquid portion that forms tiny droplets that are evenly suspended throughout the continuous phase

The composition of the continuous and dispersed phases offer one way to classify emulsions.


Oil in water emulsion(O/W)Water in oil emulsion(W/O)
For O/W emulsion-water is the continuous phase and oil is the dispersed phaseFor O/W emulsion-water is the continuous phase and oil is the dispersed phase
Less viscous and easily washable from the skin by waterMore Viscous than O/W and not easily washable from the skin by water
Example- Vanishing creamExample- Cold cream

Biphasic Liquids: Suspension: Definition, advantages, and disadvantages, Classifications, Preparation of suspensions, Flocculated and Deflocculated suspension Emulsions: Definition, Advantages & Disadvantages, Classification, Emulsifying agent, Test for the identification of the type of Emulsion, Methods of preparation, Stability of emulsion


First Year B Pharm Notes, Syllabus, Books, PDF Subjectwise/Topicwise

F Y B Pharm Sem-IS Y B Pharm Sem-II
BP101T Human Anatomy and Physiology I TheoryBP201T Human Anatomy and Physiology II – Theory
BP102T Pharmaceutical Analysis I TheoryBP202T Pharmaceutical Organic Chemistry I Theory
BP103T Pharmaceutics I TheoryBP203T Biochemistry – Theory
BP104T Pharmaceutical Inorganic Chemistry TheoryBP204T Pathophysiology – Theory
BP105T Communication skills TheoryBP205T Computer Applications in Pharmacy Theory
BP106RBT Remedial BiologyBP206T Environmental sciences – Theory
BP106RMT Remedial Mathematics TheoryBP207P Human Anatomy and Physiology II Practical
BP107P Human Anatomy and Physiology PracticalBP208P Pharmaceutical Organic Chemistry I Practical
BP108P Pharmaceutical Analysis I PracticalBP209P Biochemistry Practical
BP109P Pharmaceutics I PracticalBP210P Computer Applications in Pharmacy Practical
BP110P Pharmaceutical Inorganic Chemistry Practical
BP111P Communication skills Practical
BP112RBP Remedial Biology Practical

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