The Colloidal Stability of the Negatively Charged Silver Chloride System in the Presence of a Non-Ionic Surface-Active Agent and Electrolytes

The kinetics of the coagulation of negatively charged silver chloride sols in statu nascendi at a temperature of 293 K by K-, Mg-, and La-nitrate in the presence of a non-ionic surface active agent (SAA) T-X-305 was investigated by the light scattering method, using the tyndallometric technique. The concentration region between 1 x 10-4 and 2 X 10-3 mol dm·3 AgCl/Cl· with 1 X 10·3 mol dm·3 KCl in excess was examined. The colloid stability is presented with the relative rate constants of coagulation (or stability coefficients) and also with the critical times of coagulation, because a linear relationship was found to exist between them. The stability study was completed with adsorption and electrophoretic mobility measurements which revealed a good correlation of all three interfacial parameters