Colloidal stability theory

Equation (2.1.3a) has been studied extensively in different mathematical and physical contexts ranging from differential geometry to reaction-diffusion, electrokinetics, colloid stability, theory of polyelectrolytes, etc. In... 

Silver iodide particles in aqueous suspension are in equilibrium with a saturated solution of which the solubility product, aAg+ai, is about 10 16 at room temperature. With excess 1 ions, the silver iodide particles are negatively charged and with sufficient excess Ag+ ions, they are positively charged. The zero point of charge is not at pAg 8 but is displaced to pAg 5.5 (pi 10.5), because the smaller and more mobile Ag+ ions are held less strongly than-the 1 ions in the silver iodide crystal lattice. The silver and iodide ions are referred to as potential-determining ions, since their concentrations determine the electric potential at the particle surface. Silver iodide sols have been used extensively for testing electric double layer and colloid stability theories. 

If one makes the reasonable assumption, consistent with colloid stability theory, that F/T stability is a direct function of the total thickness of the minimum hydration layer required for F/T stability, (H)m, which is in turn a function of both the minimum carboxylate ion content, wm, and the associated surfactant, then... 

Applications of colloid stability theory to other systems 265... 

Some progress toward an understanding of these systems is also possible by considering the influence of the presence of water within the oil drops on the interaction between the oil drops and by consideration of the influence of the size of the internal water droplets on their internal stability and on the possibility of coalescence with the external aqueous phase. It is premature to consider all this in detail as the application of colloid stability theory to simpler emulsions has not been particularly successful (37). For type A w/o/w emulsions, the approach of Void (38) may perhaps be used if the oil layer is thought of as the homogeneous adsorbed layer. 

Electrodynamic Component of AGads- Since electrostatic components of AGada are repulsive for all experimental cases presented here, yet the virus is quite strongly adsorbed, other strong attractive components must also be involved in adsorption. Viruses are considered to be disperse colloidal systems, and in these systems, colloid stability theory... 

Colloid stability theories usually predict the distance dependence of the total potential energy of interaction Vt) between pairs of spheres. The force along the line of centres is readily obtained by differentiation... 

The Effects of Free Polymer on Colloid Stability Theories of Depletion Flocculation and Depletion Phase Separation... 

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