Affiliation:
1. Frumkin Institute of Physical Chemistry and Electrochemistry Russian Academy of Sciences, Moscow, Russia
Abstract
Abstract
Technetium sulfide formation kinetics was studied in the pH range 8 − 12 in presence of Na2S and phosphate buffer
solution. The conditions for separation of Tc sulfide micro and nanoparticles were found with ultramicrocentifugation and the
values of Tc sulfide solubility were demonstrated to be dependent on the Na2S concentration as
C(Tc3S10+x
) =− 9E − 5 ln [Na2S] − 2 · 10
–5 M. The composition of Tc sulfide precipitate was
elucidated with EXAFS, RBS and chemical analyses as Tc3S10+x
or [Tc3(μ3 − S)(S2)3(S2)3/3]
n
in
agreement with recent Lukens data.
Subject
Physical and Theoretical Chemistry
Cited by
11 articles.
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