Differences in the rapid coagulation kinetics of spherical and nearly spherical particles

The single-particle light-scattering technique proved to be suitable for the determination of particle size distribution with very high resolution. In particular, first steps of a coagulation process can be determined very sensitively. Rapid coagulation led to good correspondence with theory concerning the calculation of aggregation constants in the case of spherical particles. For quasispherical particles (with edges and corners) satisfactory experimental results have been obtained by the extension of the theory. With all experiments a decay of aggregates could be proved.