The solubility of Zr(IV), Th(IV) and Pu(IV) hydrous oxides is investigated at 22±2 ¿C in alkaline 0.1¿4.5M
CaCl2 solutions. Further studies are performed with Zr(IV) over the entire pH range in NaCl and CaCl2 media, and
with Zr(IV) and Th(IV) in alkaline Ca(ClO4)2 solutions. The comparison of Zr(IV) data in different ionic media (NaCl,
NaClO4, CaCl2 and Ca(ClO4)2) of similar ionic strength shows that the solubility in the acidic and neutral pH range
is not affected by strong interactions between the aqueous M(IV) species and the medium ions.
ALTMAIER M.;
NECK V.;
FANGHAENEL Thomas;
2008-12-16
OLDENBOURG VERLAG
JRC49445
0033-8230,
http://www.atypon-link.com/OLD/toc/ract/96/9-11,
https://publications.jrc.ec.europa.eu/repository/handle/JRC49445,
10.1524/ract.2008.1535,
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