Abstract:
The chemical effects of nuclear transformation associated with alpha decay of U/235 have been studied in the U235 Polyaminopoly carboxylic acid complexes of EDTA., DCTA, and DTPA. The observed break up values lie between a minimum or zero and a maximum of around 40%. These break up values are dependent on certain ranges of pH and a different pH range is observed for each of the three complex systems studied. The addition of KI, a reducing agent, and an increase of U(IV) concentration (about 7 times its concentration in the other experiments) to investigate any reducing effect of U(IV) ion itself does not alter the break-up value. The freezing of the reaction mixture, however, enhanced the break-up value to 56%. Considering the high recoil energies available following the alpha decay of U235 the break up values are thought to be low. It has been suggested that the possible localized oxidation of the U(IV) complex by the radiolysis products of water and the reducing effect of U(IV) ions, is responsible for the release of free ligand ions and the ultimate recombination with the daughter atoms, resulting in low break-up values.
Page(s):
5-11
DOI:
DOI not available
Published:
Journal: Pakistan Journal of Scientific and Industrial Research, Volume: 23, Issue: 1--2, Year: 1980