Author:
Amaya Takayuki,Chiba Tamotsu,Suzuki Kazunori,Oda Chie,Yoshikawa Hideki,Yui Mikazu
Abstract
ABSTRACTThe solubility of Sn(IV) oxide was determined in a dilute NaClO4
solution with pH 2 through 12 at ambient temperature. Both oversaturation
and undersaturation experiments were carried out in an inert gas glovebox
where the concentration of the oxygen and carbon dioxide were less than 1
ppm. The solubility of Sn(IV) oxide was 3×10-8 mol/1 at neutral
pH, and increased at pH >7.5. Equilibrium constants of soluble reactions
were calculated from the experimental data, using curve fitting method.The study suggests that the solubility of Sn(IV) oxide would be higher than
that provisionally used in current safety assessments of HLW disposal
sites.
Publisher
Springer Science and Business Media LLC
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