The Electrical Potential at the Interface between Vitreous Silica and Solutions of Barium Chloride

Abstract
The zeta‐potential of vitreous silica in contact with several solutions of barium chloride has been determined by the measurement of streaming potentials. Solutions of seven concentrations between 10−6 M and 10−2 M, inclusive, were studied, and the zeta‐potential was found to decrease in a regular manner with increasing concentration. It is evident that there is no maximum in the curve of the zeta‐potential vs. concentration, as most experimenters have reported.