Unsaturated dicarboxylic acids as substrates in oscillating reactions involving bromate, sulfuric acid and a catalyst |
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| Authors: | M T Beck and Z B Váradi |
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| Institution: | (1) Department of Physical Chemistry, L. Kossuth University, H-4010 Debrecen, Hungary |
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| Abstract: | A new type of homogeneous oscillating reaction has been observed in the potassium bromate-acetylenedicarboxylic acid-ferroin-sulfuric acid system. This proves that the presence of an  active methylene group is not a necessary condition for oscillating reactions involving carboxylic acids. Malonic acid can be partly replaced by maleic and fumaric acid in the Belousov reaction. Under the mild experimental conditions of the oscillating reaction, maleic acid undergoes isomerization to fumaric acid.
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