Coagulation and reversal of charge of lyophobic colloids by hydrolyzed metal ions: V. Scandium nitrate

Abstract

Critical coagulation concentrations and critical stabilization concentrations of scandium nitrate solutions for negatively charged silver bromide sols in statu nascendi were obtained over the pH range 3–7. The concentrations of all scandium species present in solution over the same range of salt concentration and of pH were calculated using the hydrolysis constants recently determined by Aveston (14). It could be shown that the stability phenomena observed are directly related to the composition of the scandium salt solution.