The structure and some properties of gel-like yttrium and gadolinium hydrated oxides

The supermolecular organization and properties of gel-like yttrium and gado linium hydrated oxides are studied as functions of the time of precipitate stirring with mother solution and of the pH value at the end of synthesis. The density, the dehydration temperatures, the kinetics of dissolution in a n acid, and the sorption ability of hydrated oxides are shown to be nonmono tonic functions of the aforementioned parameters.