Chemical mechanism of the radical feedback loop in the classical BZ reaction. Malonyl bromite and oxalic acid as flow-through intermediates

…, K Pelle, G Taba, M Wittmann, Z Noszticzius

Index: Hegedus; Forsterling; Kokai; Pelle; Taba; Wittmann; Noszticzius Physical Chemistry Chemical Physics, 2000 , vol. 2, # 18 p. 4023 - 4028

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Citation Number: 9

Abstract

High-pressure liquid chromatography (HPLC) and measurements of the CO2 produced were performed in the induction period of the classical Belousov–Zhabotinsky (BZ) reaction (malonic acid–bromate–cerium catalyst in sulfuric acid medium). It was found that oxalic acid is a flow-through intermediate of the reaction. This was confirmed with an independent qualitative test with thiobarbituric acid. The concentration of oxalic acid grows in the ...