Collection of Czechoslovak Chemical Communications - digital archive 

Abstract

It was found that the flow of light Φ_r scattered by a dispersion at the angle of 90⁰, integrated along the optical path of the incoming beam, exhibits an extremum in dependence on the dispersion concentration; its concentration coordinate is a linear function on the dimension of the dispersed particles. This linear dependence is also valid for the concentration corresponding to the selected transparence level on the dependence of the flow Φ_t of light transmitted by the dispersion. A physical model was constructed and the derived equations of the Φ_r(C) and Φ_t(C) dependences are in very good agreement with experiments in a concentration range of roughly three orders. The method can be practically applied in determinations of dispersed particle size.