Surface charge is a critical issue for various types of glass processing including surface finishing (polishing) and cleaning. Unlike monomeric silicic acid with a pKa of 9.8, glass surfaces can have variable pKa values as determined by extent of Si-O-Si bonding, composition, and structure. The purpose of this study was to determine the surface charge, point of zero charge, and pKa's for high purity fused SiO2 and TiO2-SiO2 glasses.
Origin
Corning, Usa
Journal Title
Corning Research 2000 103-111
Sector
Special Glass
Class
S 2435