Light scattering of silica particles in solution

Static and dynamic light scattering techniques were used to study aggregation of monodisperse silica microspheres prepared by the Stoeber process. The results show that the Stoeber particles form spheroidal aggregates when dispersed in water solutions. In acidic conditions these aggregates tend to coalesce in polydisperse collections of aggregates. These observations are compared with previous works on silica aggregates prepared by different techniques.