Abstract
The effect of sodium dodecyl sulfate (SDS) on positively charged hydrous ferric oxide sols (FOS) was studied by following turbidity and electrophoretic mobility as a function of increasing concentration of added SDS and by determining the adsorption isotherm. Adsorption of SDS reduced the electric charge of FOS and caused flocculation. Complete precipitation occurred near zero charge. Further increase in SDS concentration resulted in smaller additional adsorption, charge reversal, and redispersion of FOS. The effect of increasing particle size, resulting from aging or dialysis, on SDS adsorption is discussed qualitatively.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Weiser, H. B., and E. B. Middleton, J. Phys. Chem.24, 30 (1920).
Schott, H., J. Phys. Chem.70, 2966 (1966).
Northrop, J. H., and M. Kunitz, J. Gen. Physiol.7, 729 (1925).
Barr, T., J. Oliver and W. V. Stubbings, J. Soc. Chem. Ind.67,45 (1948).
Reich, I., and R. D. Vold, J. Phys. Chem.63, 1497 (1959).
Rose, H. E., and H. B. Lloyd, J. Soc. Chem. Ind.65, 65 (1946).
Weiser, H. B., “Inorganic Colloid Chemistry,” Vol. II, John Wiley and Sons Inc., New York, N.Y., 1935.
Author information
Authors and Affiliations
Additional information
Presented at the Second Middle Atlantic Regional Meeting, American Chemical Society, New York, N.Y., February 1967.
About this article
Cite this article
Schott, H., Kazella, I.J. Interaction of an anionic surfactant with hydrous ferric oxide sol. J Am Oil Chem Soc 44, 416–419 (1967). https://doi.org/10.1007/BF02666782
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02666782