الفهرس 
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Abstract
Surfactants are amphipathic molecules with both hyDROPhilic and hyDROPhobic moieties that partition preferentially at the interface between fluid phases with different degrees of polarity and hydrogen bonding such as oil water interfaces. These properties render surfactants capable of reducing surface and interfacial tension and forming microemulsion where hydrocarbons can solubilize in water or water can solubilize in hydrocarbons such characteristics confer excellent detergency emulsifying foaming and dispersing traits which makes surfactants some of the most versatile process chemicals.