Thermodynamic studies of U(vi) complexation with glutardiamidoxime for sequestration of uranium from seawater
Guoxin TianChemical Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, California 94720, USASimon J. TeatAdvanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, California 94720, USALinfeng RaoChemical Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, California 94720, USA
2013en
ABI
Annotatsiya
Glutardiamidoxime (H2B), a diamidoxime ligand that has implications in sequestering uranium from seawater, forms strong complexes with UO2(2+). Five U(VI) complexes were identified in 3% NaCl solution. The stability constants and the enthalpies of complexation were measured by potentiometry and microcalorimetry. The competition between glutardiamidoxime and carbonate for complexing U(VI) in 3% NaCl was also studied in comparison with the cyclic glutarimidedioxime ligand (H2A) previously studied.
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