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Polarographic Studies of Uranium in α‐Hydroxy‐Iso‐Butyrate Medium
Author(s) -
Wong WenKuei,
Pan Kuan
Publication year - 1960
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.196000011
Subject(s) - chemistry , polarography , uranyl , sodium perchlorate , perchlorate , aqueous solution , uranium , inorganic chemistry , nuclear chemistry , electrochemistry , ion , organic chemistry , electrode , materials science , metallurgy
Uranyl perchlorate in aqueous solution containing α‐hydroxy‐ iso ‐butyric acid (HA) and sodium perchlorate was observed at varying pH's. Two reduction waves with half‐wave potentials at −0.22 and −0.95 volts vs. S. C. E ., observed at p H below 3.0, are attributable to the polarographic reductions, UO 2 ++ +e→UO 2 + and UO ++ +e→UO + , or UOOH + +e→UOOH, while the first wave observed above pH 3.0 or in large excess of HA above pH 2.0, may be attributable to the reduction of UO 2 A + complex and the third wave at −1.2 volt vs. S. C. E . to that of UOA + complex or its dimer. A confirmation for the latter was made by polarographic reduction of uranous sulfate in HA and NaClO 4 solution.