Interference of iron (3) and scandium (3) cations on hydrolysis process in solutions

Using the method of dialysis mutual effect of Fe3 and Sc3+ cations on hydrolysis in a wide range of concentrations of metal-ions and pH of the solution has been studied. It is shown that when Fe3 and Sc3 are jointly present in solutions under certain conditions scandium hampers the formation of polynuclear hydroxocomplexes of iron in solution. Whereas scandium in the presence of iron transforms into polynuclear state in pH range where in the absence of iron it is present in the form of monomeric forms