Oscillation induced by light in reactions of glycerol triacetate

Abstract

A new beluosov-Zhabotinskii oscillating reaction induced by light with glycerol triacetate as substrate in cyclohexane-water at (30±0. 1)℃ has been designed. The main light resource was a pair of 5W electronic fluorescent lamp. The oscillatory curves were monitored by the general method using Pt electrode and Br^- electrode, as well as a pair of Pt electrode. Effects of various factors on the oscillating reaction were studied, including the change of concentrations, substitution of light and organic solvent, as well as the addition of various surfactants. The experiments show that the light range which can induce the oscillation is very large. It was demonstrated that cyclohexane was inactive according to the separation and analysis of the organic solvent. An oscillatory mechanism is also put forward on the basis of the experimental results. Mathematical simulation proves that the mechanism is also put forward on the basis of the experimental results. Mathematical simulation proves that the mechanism is correct. A new way to design chemical oscillator for inducing ocillation in a variety of reactions is thus developed.

Key words: CHEMICAL OSCILLATIONS, CYCLOHEXANE, SURFACTANTS, PHOTOCHEMICAL REACTION

CLC Number:

O644

Cite this article

He Zhanbo;Qi Gang;Zhang Fengcai. Oscillation induced by light in reactions of glycerol triacetate[J]. Acta Chimica Sinica, 2001, 59(3): 316-320.

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