Author:
Packer John E.,Anderson Robert F.
Abstract
Spectroscopic evidence for
I2S2O32-
and IS2O3-,
postulated as intermediates in the iodine{thiosulfate reaction, has been
obtained by using the technique of pulse radiolysis to oxidize iodide to
I3- in the presence of
thiosulfate. The spectra show blue shifts with respect to
I3- and I2
respectively. The kinetics of the reaction over a range of concentrations
different from those reported by Scheper and Margerum
have also been studied and further evidence for their quantitative scheme has
been obtained; a change predicted by their model, but not detected by them, in
kinetic order in
S2O32- at
low thiosulfate and high iodide concentrations has been found.
Cited by
6 articles.
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