What is oriented wedge theory of emulsification?
The oriented wedge theory of emul- sions indicates that if the non-polar end of the molecule of the-emulsifying. agent is the smaller, the emulsion will be one of oil in water-or of the ordinary type-while if the polar end is the smaller, the droplets will be of water.
What is emulsification theory?
Surface tension theory – according to this theory, emulsification takes place by reduction of interfacial tension between two phases. Repulsion theory – the emulsifying agent creates a film over one phase that forms globules, which repel each other.
Which of the following is are the theories of emulsification?
Theories of emulsification Among the most prevalent theories are the surface tension theory, the oriented-wedge theory, and the plastic or interfacial film theory.
What are the three theories of emulsification?
AT THE PRESENT TIME NO THEORY HAS BEEN POSTULATED THAT SEEMS TO APPLY UNIVERSALLY TO ALL EMULSIONS.
- ELECTRIC DOUBLE LAYER THEORY.
- PHASE VOLUME THEORY.
- HYDRATION THEORY OF EMULSIONS 4) ORIENTED WEDGE THEORY.
What is emulsification agent?
An emulsifying agent (emulsifier) is a surface-active ingredient which adsorbs at the newly formed oil–water interface during emulsion preparation, and it protects the newly formed droplets against immediate recoalescence.
What are the different types of emulsions?
There are two basic types of emulsions: oil-in-water (O/W) and water-in-oil (W/O). These emulsions are exactly what they sound like, as pictured below. In every emulsion there is a continuous phase that suspends the droplets of the other element which is called the dispersed phase.
What are types of emulsion?
How will you classify emulsifying agents?
Emulsifying agents can be classified according to: 1) chemical structure; or 2) mechanism of action. Classes according to chemical structure are synthetic, natural, finely dispersed solids, and auxiliary agents. Classes according to mechanism of action are monomolecular, multimolecular, and solid particle films.