Premium
Chemistry of Uranium in Aluminophosphate Glasses
Author(s) -
SCHREIBER HENRY D.,
BALAZS G. BRYAN,
WILLIAMS BARBARA J.
Publication year - 1982
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1982.tb10512.x
Subject(s) - uranium , redox , chemistry , phosphate , silicate , inorganic chemistry , sodium , base (topology) , oxygen , mineralogy , metallurgy , materials science , organic chemistry , mathematical analysis , mathematics
The U(VI)‐U(V)‐U(IV) redox equilibria were monitored in two sodium aluminophosphate base compositions at a variety of melt temperatures, imposed oxygen fugacities, and uranium contents. The higher redox states of uranium were quite soluble in the phosphate glasses, whereas U(IV) would readily precipitate from the melts as UO 2 . Comparisons of the uranium redox equilibria established in phosphate melts vs those in silicate melts indicated that the coordination sites of the individual uranium species are generally the same in both solvent systems although they differ in detail.