Precipitation and hydrolysis of uranium(VI) in aqueous solutions: uranyl nitrate – potassium hydroxide

Tomažič, B.; Branica, Marko; Težak, B. (1962) Precipitation and hydrolysis of uranium(VI) in aqueous solutions: uranyl nitrate – potassium hydroxide. Croatica Chemica Acta, 34 (4). pp. 41-50. ISSN 0011-1643

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Abstract

The precipitation and hydrolysis of uranium (VI) in aqueous Solutions of uranyl nitrate — potassium hydroxide — neutral electrolyte, was investigated. Clear and stable systems of uranyl nitrate and potassium hyđroxide, were studied, in equivalent concentration of 2 X10-3 N. The pH value, of the mentioned system was between 5 and 6. By addition of neutral electrolytes (potassium, calcium, strontium, barium, yttrium, and lantanum nitrate) the precipitation process was initiated and up to 70% of the uranium present was precipitated. The experimental results showed, that the precipitation of uranium (VI), in the observed system, was accomplished by several mechanisms, t.e. hydrolysis, coagulation, and formation of mixed uranates.

Item Type:	Article
Uncontrolled Keywords:	precipitation; hydrolysis; uranium
Subjects:	NATURAL SCIENCES > Chemistry > Physical Chemistry
Divisions:	Division of Physical Chemistry
Depositing User:	Marina Mayer
Date Deposited:	02 Oct 2015 09:14
URI:	http://fulir.irb.hr/id/eprint/2128

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