A novel possibility to clarify the role of bromide in bromate oscillators |
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| Authors: | E. Krö s M. Varga |
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| Affiliation: | (1) Institute of Inorganic and Analytical Chemistry, L. Eötvös University, Box 123, H-1443 Budapest, Hungary |
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| Abstract: | Bromocomplex forming metal ions (Tl3+, Hg2+) alter considerably the parameters of chemical oscillations in bromate oscillators. Even at 10–5 M metal ion concentration the period of the oscillation is doubled or tripled; at 10–4 M the oscillation is quenched. At high ( 10–2 M) Tl3+ concentration, high frequency, strongly damped oscillations occur although [Br–]eq is below 10–10 M. By the addition of Tl3+ we could determine the amount of Br– formed in a single autocatalytic step, which we found to be about 10–4 M.
            (Tl3+, Hg2+),         ,       .   10–5 M  , ; 10–4 M  .  Tl3+ (10–2 M) , [Br–]eq 10–10 M. Tl3+ Br–, , 10–4 M.
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