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The influence of the pH of precipitation and the ionic medium nature on the composition, surface charge, and kinetic sorption characteristics of aluminum oxyhydroxides formed by alkaline hydrolysis of an aqueous solution of aluminum nitrate was studied. The methods of drop titration with alkali, argentometric titration, point of zero charge, and indicator reactions of heterogeneous hydrolysis were...
The composition and sorption properties of chromium(III) oxyhydroxides freshly formed at various pH have been investigated. The hydroxides were found to be exposed to olation and oxolation already in the process of precipitation from the solution. Therefore the stoichiometric composition Cr(OH) 3 was not attained. The obtained phases are amorphous (chromogels). The acid-basic and sorption...
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