TY - JOUR
T1 - Polarography of Uranium Chelate with 2,3‐Cresotic Acid
AU - Chen, S. N.
AU - Chen, T. H.
AU - Gi, H. C.
AU - Wang, J. J.
PY - 1988/12
Y1 - 1988/12
N2 - The polarography of uranyl ion in 2,3‐cresotic acid solution has been studied at 25°C under varying conditions of ligand concentration and pH. The ligands species were proved to be a 2,3‐cresotate anion. The half‐wave potential vs. pH value interpreted on the basis of pK value for the acid ionization, and resulted in agreement with the deduction. The mole ratio of metal to ligand was found to be 1:1 and 1:2 by conductometric titration. At pH < pK1, the complex species of UO2(H2A)2+ and UO2(HA)+ was identified. At pK1 < pH < pK2, the co‐existence of UO2(HA)+, UO2(OH)(HA)2− and UO2(A)22– was confirmed. At pH > pK2, the complex species of UO2(OH) (A)23– was formed.
AB - The polarography of uranyl ion in 2,3‐cresotic acid solution has been studied at 25°C under varying conditions of ligand concentration and pH. The ligands species were proved to be a 2,3‐cresotate anion. The half‐wave potential vs. pH value interpreted on the basis of pK value for the acid ionization, and resulted in agreement with the deduction. The mole ratio of metal to ligand was found to be 1:1 and 1:2 by conductometric titration. At pH < pK1, the complex species of UO2(H2A)2+ and UO2(HA)+ was identified. At pK1 < pH < pK2, the co‐existence of UO2(HA)+, UO2(OH)(HA)2− and UO2(A)22– was confirmed. At pH > pK2, the complex species of UO2(OH) (A)23– was formed.
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U2 - 10.1002/jccs.198800061
DO - 10.1002/jccs.198800061
M3 - Article
AN - SCOPUS:84985070180
SN - 0009-4536
VL - 35
SP - 411
EP - 415
JO - Journal of the Chinese Chemical Society
JF - Journal of the Chinese Chemical Society
IS - 6
ER -