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Keywords:

  • emulsions;
  • interfaces;
  • oil;
  • water;
  • zeta potentials
Thumbnail image of graphical abstract

The effect of fatty acid impurities on the electrophoretic mobility of hexadecane in water emulsions is reinterpreted, occasioned by an error in the surface charge attributed to the fatty acids. The results are consistent with a surface charge contributed by both hydroxide ions and deprotonated fatty acids (see picture).