ABSTRACT
Origins of Colloid Stability . . . . . . . . . . . . . . . . . . . 249
Electrostatic Repulsion . . . . . . . . . . . . . . . . . . . . 249
van der Waals Attraction . . . . . . . . . . . . . . . . . . . 249
Steric Stabilization and “Anomalous” Stability . 250
Hydration Effects . . . . . . . . . . . . . . . . . . . . . . . . . 251
Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . . 252
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
The control of silica sol coagulation by pH and by addition of simple electrolytes is said to be “anomalous”
in that it is not simply predicted by conventional Derjaguin-Landau-Verwey-Overbeck (DLVO) theory.
