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Concentrations of Ions at the Surfaces of Clays
Author(s) -
TAYLOR A. W.
Publication year - 1959
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1959.tb12944.x
Subject(s) - electrolyte , ion , surface charge , surface layer , chemistry , charge density , inorganic chemistry , layer (electronics) , mineralogy , materials science , electrode , organic chemistry , physics , quantum mechanics
Equations based on the theory of the structure of the electrical double layer developed at a charged plane surface are used to calculate the concentrations of ions at the surfaces of clays suspended in various electrolyte solutions. The results indicate that in clays where the surface density of charge is high the conditions close to the surface are independent of the outer electrolyte concentration provided that this is not too high. The treatment is applied to the problem of the conditions present at the surfaces of clays suspended in dilute acid, and the effect of the addition of neutral salts on the acidity at the surface is discussed.