Croatica Chemica Acta, Vol. 42 No. 2, 1970.
Conference paper
The Lyotropic Sequence in the Stability of Hydrophobic Colloids
J. Lyklema
; Agricultural University, Laboratory for Physical and Colloid Chemistry, Wageningen, Netherlands
Abstract
The nature of the counterion, among other parameters, has
a pronounced influence on the flocculation values for hydrophobic
sols. A discussion of the lyotropic sequence, i. e. of the increase of
the flocculation values for a typical, negatively charged silver
iodide sol, in the series Rb+, K•, Na•, and Li+, is given in terms
of the Deryagin-Landau-Verwey-Overbeek theory of colloidal
stability. More recent data on adsorption of alkali metal ions on
the surface of a-hematite indicate a reversal of the lyotropic series.
Interpretation is sought in the predominance of steric factors.
Keywords
Hrčak ID:
197546
URI
Publication date:
20.8.1970.
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