Original scientific paper

Precipitation and Solubility of Uranyl Orthophosphates. II. Heterogeneous Equilibria in Solutions of: U02(NO3)2 - H3P04 - HNO3

N. Pavković ; Department of Physical Chemistry, Institute »Ruder BoskoviC«
M. Wrischer ; Laboratory of Physical Chemistry, Faculty of Science, University -of Zagreb, - Zagreb, Croatia, Yugoslavia
M. Branica ; Laboratory of Physical Chemistry, Faculty of Science, University -of Zagreb, - Zagreb, Croatia, Yugoslavia

Abstract

The precipitation and dissolution of uranium(VI) from aqueous
solutions containing 10-3 M uranyl nitrate and various concentrations
of orthophosphoric and nitric acid is / surveyed. The concentration
regions where (U02)s(P04h and U02HP04 are precipitated
and/or dissolved are presented by means of typical precipitation
bodies. The influence of the initial concentration ratio of nitric/
orthophosphoric acid in the precipitation system on the morphology
of (U02la(P04)2 particles formed is shown by electron micrograps.

Keywords

Hrčak ID:

208040

URI

https://hrcak.srce.hr/208040

Publication date:

25.10.1968.

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