Electrophoretic mobility was measured on sols and suspensions of AgI aged for 4 hours and for 4 days at 6.5 > pAg > 2.8. The electrophoretic zero - point and the electrophoretic mobility were found to be independent of the concentration of AgI in which the sols and suspensions were prepared in the region between 10- 4 and 10-3 M AgI
