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Citation: Gao Zhidi, Yu Baoqing, Liu Junli, Lin Qiuzhu. THE PREOSCILLATORY TIME AND PERIOD OF PHENOL-BrO₃-H₂SO₄ SYSTEM[J]. Acta Physico-Chimica Sinica, ;1989, 5(02): 214-217. doi: 10.3866/PKU.WHXB19890217 shu

THE PREOSCILLATORY TIME AND PERIOD OF PHENOL-BrO₃-H₂SO₄ SYSTEM

1.
Chemistry Department; Peking University

Received Date: 18 September 1987
Available Online: 15 April 1989

The variation of preoscillatory time and period with initial concentration of every substance in the phenol-BrO_3~--H_2SO_4 batch system has been studied. It is found that the oscillating behavior of the system is very strange: First, the period of the oscillation increases with time, as usual oscillations, then decreases with time in some ranges of concentration. This oscillation is called “period-doublemontonous” oscillation. The phenomena arc first published. The electrode potential of the system exalts likelycatatropy with the concentration of phenol. For BrO~-_3 and H_2SO_4 this phenomenon cannot emerge. This oscillation cannot be explained with FKN or OKN mechanism. Some details will be submitted later.
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THE PREOSCILLATORY TIME AND PERIOD OF PHENOL-BrO₃-H₂SO₄ SYSTEM