Determination of structure parameters and size distribution of colloidal particles by means of small-angle X-ray scattering

A dilute silica suspension was used for examining the possibilities of using the small-angle X-ray scattering in the investigation of objects of colloid dimensions. The average radius of gyration, weight, volume and specific surface of the SiO₂ particles were determined. The particle size distribution curve was determined by integral transformation of the scattering curve and by adjusting the parameters of empirical functions.The authors are indebted to Professor P. W.Schmidt for kindly supplying the SiO₂ suspension.