S. Veeramasuneni et al., INTERACTION FORCES AT HIGH IONIC STRENGTHS - THE ROLE OF POLAR INTERFACIAL INTERACTIONS, Journal of colloid and interface science, 188(2), 1997, pp. 473-480
The interaction of soluble salt particles in their saturated brines is
of interest from both a fundamental and practical perspective. The st
ate of dispersion/aggregation of alkali halide particles as determined
by optical microscopy has been described based on nonequilibrium elec
trokinetic measurements for alkali halides. These results indicate tha
t the sign of the surface charge has a significant effect on the exten
t of particle dispersion/aggregation. Atomic force microscopy (AFM) is
now being used to directly measure the interaction forces responsible
for the stability of these alkali halide aggregates observed in optic
al microscopy studies. These experimental results can be explained bas
ed on the interfacial polar interaction theory. In this regard the nat
ure of such particle interaction forces at high ionic strengths is exa
mined to improve our understanding of these systems. (C) 1997 Academic
Press.