The Interaction of Solid Surfaces in Aqueous Systems Article Abstract
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Published: April 18, 2008
The interaction
between two high-grade polished fused silica plates separated by a thin layer
of aqueous LiC1, NaCI and KCI solution, respectively, was determined by means
of a self developed method. Concerning the repulsion created by overlap of the electrical
double layers excellent agreement with the DLVO theory down to separation of about
5 nm were found. For still smaller separations a relatively strong additional
repulsion arises which according to experimental evidence might be assigned to
the overlap of hydration layers emanating chiefly from the alkali metal halide
ions adsorbed onto the silica surfaces.