DIFFERENCES IN THE RAPID COAGULATION KINETICS OF SPHERICAL AND NEARLYSPHERICAL-PARTICLES

The single-particle light-scattering technique proved to be suitable f or the determination of particle size distribution with very high reso lution. In particular, first steps of a coagulation process can be det ermined very sensitively. Rapid coagulation led to good correspondence with theory concerning the calculation of aggregation constants in th e case of spherical particles. For quasispherical particles (with edge s and corners) satisfactory experimental results have been obtained by the extension of the theory. With all experiments a decay of aggregat es could be proved.