TITLE

Separation of carrier-free 103Pd and 109Pd by spontaneous electrodeposition

AUTHOR(S)
Abbasi, I. A.; Zaidi, J. H.; Arif, M.; Subhani, M. S.
PUB. DATE
May 2006
SOURCE
Journal of Radioanalytical & Nuclear Chemistry;May2006, Vol. 268 Issue 2, p365
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Spontaneous electrodeposition for the separation of electropositive metal ions is an attractive technique. This technique needs no external electromotive force. In this work, a spontaneous electrodeposition technique has been elaborated for the separation of carrier-free radioisotopes of palladium from neutron-irradiated cadmium targets. The deposited radioactive palladium was removed by dipping the platinum electrode in nitric acid giving a highly pure yield of carrier-free 109Pd and/or 103Pd. The separation factor achieved was reasonable (1.3 . 106). The process is very simple and needs little manipulation and amenable to automation and remote processing. The process is not sensitive to Cd(NO3)2 and HNO3 concentrations. Deposition velocity (4.119±0.353) . 10-2 min-1 and deposition constant 0.1211 cm . min -1 were calculated and from the temperature dependence of the deposition velocity constants, the activation energy (0.1155 ±0.3169 eV) was also determined. The thermodynamic spontaneity can be satisfied at different concentrations of Pd 2+ ions. The process was found to be irreversible.
ACCESSION #
21055413

 

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