CATHODIC ACTION OF THE URANYL-GLYCOLATE COMPLEX AT THE DROPPING MERCURY ELECTRODE

Journal Article · Sun Sep 01 04:00:00 EDT 1963 · Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed.

DOI:https://doi.org/10.1021/ac60203a028· OSTI ID:4653168

Lai, T; Chen, S; Wang, B; Hsieh, C

The uranyl-- glycolate complex system was studied at 30 deg C by polarography. The half-wave potential vs pH plots broke at pH 3.8 (when mu = 0), which was equal to the pK value of the glycolic acid. The compositions of the complexes were confirmed to have metal-- ligand ratios of 1: 1 and 1: 2 by conductometric measurement. The electrode reactions were deduced to be UO/sub 2/ G/sub 2/ + H/sup +/ + d/sup -/ = UO/sub 2/ G + HG pH < 4.1 and UO/sub 2/G/sub 2/ + e/sup -/ = UO/sub 2/G + G/sup -/ 4.1 < pH < Above pH 5.1, the uranyl ion was complexed with hydroxyl ion in preference to glycolate ion, and this rendered the reduction irreversible. The diffusion current was proportional to concertration of uranium from 1.0 x 10/sup -4/M to 3.5 x 10/sup -3/M with plus or minus 2% relative standard deviation. (auth)

• Research Organization: Cheng Kung Univ., Taiwan, China
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-033811
• OSTI ID: 4653168
• Journal Information: Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed., Journal Name: Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed. Vol. Vol: 35; ISSN ANCHA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACIDITY
ALCOHOLS
CHEMISTRY
DIFFUSION
ELECTRIC CONDUCTIVITY
ELECTRIC POTENTIAL
ELECTRODES
HYDROXIDES
IONS
POLAROGRAPHY
REACTION KINETICS
URANIUM COMPLEXES
URANYL COMPOUNDS