Estimation of characteristic coagulation time based on brownian coagulation theory and stabilty ratio modeling using electrokinetic measurements

•The characteristic time of coagulation of colloidal suspensions is studied.•The rate of coagulation is estimated using Brownian coagulation theory.•The collision efficiency is taken into account through a stability ratio.•Electrokinetic measurements are used to model the stability ratio.•The method is applied to a latex: coagulation times and mixing times are compared.