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1. General
1.1 Definition of micro and macroemulsions
Some natural substances and many man-made products are non-miscible liquid-liquid dispersed systems stabilized by a surfactant. They are grouped together under the generic term of emulsions, to which a prefix such as macro, micro, mini or nano is often added, according to ill-defined criteria . Emulsions are used as vehicles for mixed aqueous-organic conditioning of paints, bitumens, foodstuffs, pharmaceuticals, cosmetics and hygiene products, fuels, machining or drilling fluids, phytosanitary products...
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The Ultimate Scientific and Technical Reference