物理化学学报 >> 1989, Vol. 5 >> Issue (02): 214-217.doi: 10.3866/PKU.WHXB19890217

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苯酚-KBrO3-H2SO4振荡体系的诱导期与周期

高执棣; 于宝庆; 刘君利; 林秋竹   

  1. 北京大学化学系
  • 收稿日期:1987-09-18 修回日期:1988-01-26 发布日期:1989-04-15
  • 通讯作者: 高执棣

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

Gao Zhidi; Yu Baoqing; Liu Junli; Lin Qiuzhu   

  1. Chemistry Department; Peking University
  • Received:1987-09-18 Revised:1988-01-26 Published:1989-04-15
  • Contact: Gao Zhidi

Abstract:

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.