Silica has been well-studied dispersed in organic solvents, traditionally called ¿organosols¿. One surfactant that is known to enable dispersion is sodium dioctylsulfosuccinate (Aerosol OT or AOT). Given the number of publications of silica in nonpolar solvents, the particular particles and the organic solvent composition vary between them. There have been few systematic experiments into the solvent effects on charging. By keeping the particles and surfactant constant and only varying the solvent composition, it is possible to isolate any solvent effects. ¿Solvent quality¿ effects have been observed for surfactant aggregation in nonpolar solvents using SANS, and by using contrast-variation SANS, this study will determine if there is an analogous effect of ¿solvent quality¿ on the adsorption of surfactant on silica and if this correlates with particle charge and dispersion stability.