Collect. Czech. Chem. Commun. 1986, 51, 1609-1617

Effect of the rate of stirring on crystal size in precipitating or salting-out systems

Jaroslav Nývlt and Stanislav Žáček

Institute of Inorganic Chemistry, Czechoslovak Academy of Sciences, 160 00 Prague 6


A simple model is proposed to express the dependence of the mean crystal size on the rate of stirring in precipitating or salting-out systems. The nucleation rate is taken to be proportional to the interfacial area of segregated regions. This area is a function of the dissipated energy. The derived relations are applied to results of a series of experiments in which aluminium-potassium sulphate was salted out by the addition of aqueous solutions of methyl alcohol.