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      11 Jun
    Ajay S. Satpute

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Chemical and Process Engineering Resources

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Category: Separation Technology
Question: What is an emulsifier?
Keywords: emulsion,surfactant,emulsifier,hydrophilic,hydrophobic
Answer: An emulsifier is a type of surfactant typically used to keep emulsion (mixtures of immiscible fluids) well dispersed. Emulsifiers typically have a hydrophobic (water-hating) and a hydrophilic (water-liking) end. The emulsifiers will surround an oil (or other immiscible molecule) and form a protective layer so that the oil molecules cannot "clump" together. This action helps keeps the dispersed phase in small droplets and preserves the emulsion.


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