Croatica Chemica Acta, Vol. 42 No. 2, 1970.
Conference paper
Specific Counterion Effects in Surface and Colloid Chemistry. Ionized Monolayers
E. D. Goddard
; Lever Brothers Company, Research Center, Edgewater. N. J., U.S.A.
Abstract
Data are presented on the effect of various monovalent
cations on the rr,-A and 8V-A characteristics of charged insoluble
monolayers. The following interaction sequences were established:
R-coo-, Li > Na > K > tetramethylammonium > tetraethylammonium;
R-S04-, Cs = Rb> K > Na> Li; R-N (CHah+. SCN >
>I> N03 >Br> Cl> F; R-NH(CH3)2+ and R-NHs+, Br> Cl.
The results thus parallel data on ion sequence effects reported in
other branches of colloid and physical chemistry. They are discussed
in the light of various hypotheses advanced to explain these
effects. The monolayer rr,-A curves were compared with those predicted
from theoretically derived equations of state: agreement was
generally poor.
Keywords
Hrčak ID:
197545
URI
Publication date:
20.8.1970.
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