Influence of charge exchange in acidic aqueous and alcoholic titania dispersions on viscosity

Dispersion properties of acidic alcohol dispersions are characterized by conductivity, pH, proton concentration in solution, and dispersion. Charging of particles is characterized by surface excess of (adsorbed) protons, acid anions, and zeta-potential. Stability of dispersion is characterized by viscosity. Systems investigated are 1-25 wt% TiO2, 0-100 wt% MeOH-PrOH acidified with oxalic, phosphoric, and sulfuric acids.