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Unsaturated dicarboxylic acids as substrates in oscillating reactions involving bromate, sulfuric acid and a catalyst

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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.

Abstract

Наблюдалась гомогенная осциллирующая реакция нового типа в системе бромат калия — ацетилендикарбоксильная кислота — ферроин — серная кислота. Это доказывает, что присутствие “активной” метиленовой группы не является необходимым условием осциллирующей реакции, включающей карбоксильные кислоты. Малоновая кислота может быть частично замещена малеиновой и фумаровй кислотами в реакции Белоусова. В мягких экспериментальных условиях осциллирующей реакции малеиновая кислота иэомеризуется в фумаровую кислоту.

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Authors and Affiliations

  1. Department of Physical Chemistry, L. Kossuth University, H-4010, Debrecen, Hungary

    M. T. Beck & Z. B. Váradi

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  1. M. T. Beck
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  2. Z. B. Váradi
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Beck, M.T., Váradi, Z.B. Unsaturated dicarboxylic acids as substrates in oscillating reactions involving bromate, sulfuric acid and a catalyst. React Kinet Catal Lett 6, 275–279 (1977). https://doi.org/10.1007/BF02070220

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  • DOI: https://doi.org/10.1007/BF02070220

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