化学学报 ›› 1990, Vol. 48 ›› Issue (5): 478-482. 上一篇    下一篇

研究论文

酪氨酸-KBrO3-H2SO4体系化学振荡反应的研究

李和兴;傅楚瑾;许海涵   

  1. 上海师范大学化学系
  • 发布日期:1990-05-15

Study on the chemical oscillation in tyrosine-KBrO3-H2SO4 system

LI HEXIN;FU CHUJIN;XU HAIHAN   

  • Published:1990-05-15

本文首次报道酪氨酸-KBrO3-H2SO4体系的非催化化学振荡反应及在Ce^36+等金属离子催化下的振荡反应, 研究了振荡反应产物及许多因素对振荡反应的影响,讨论了非催化振荡反应的控制机理。根据实验结果以及振荡反应的一般机理,对上述体系非催化振荡反应的机理作了初步的探索, 并用以对实验现象作了定性说明。

关键词: 酪氨酸, 反应机理, 硫酸, 钾化合物, 化学振荡, 溴酸盐, 非催化反应

The chem. oscillating system of tyrosine-KBrO3-H2SO4 is described. This system not only includes oscillation, in the presence of Ce3+, Mn2+, and Fe(Phen)2+3 as catalysts, but also induces uncatalyzed oscillations in the absence of metal ions. The effects of many factors on the oscillations were investigated. A mechanism for the uncatalyzed oscillation of this system is proposed.

Key words: TYROSINE, REACTION MECHANISM, SULFURIC ACID, POTASSIUM COMPOUNDS, CHEMICAL OSCILLATIONS, BROMATE, NONCATALYTIC REACTION

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