3. Uses and selection criteria
3.1 Emulsions
The preparation and stabilization of emulsions, dispersions of a liquid (water or oil) in an immiscible liquid (oil or water), requires the presence of one or more surface-active compounds whose role is to reduce the water/oil interfacial tension in order to enable dispersion (increase in interface area).
Consequently, the surfactant's ability to reduce the interfacial tension between the two phases to be emulsified is a key criterion for surfactant selection.
Other, more readily available selection criteria can also be used. As a general rule, the surfactant must have a good affinity for the continuous phase: an oil-in-water (O/W) emulsion requires a surfactant of a more hydrophilic nature, while a water-in-oil (W/O) emulsion...
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Uses and selection criteria
Bibliography
General works
Names of main suppliers
Albright et Wilson Saint-Mihiel S.A.
BASF France Specialty Chemicals Division.
Céca S.A.
BASF Agro SAS.
Atofina. Specialty Chemicals Division.
Exxon Chemical France Specialty Chemicals Division.
Henkel Ecolab Specialty Chemicals Division.
...
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