化学学报 ›› 1997, Vol. 55 ›› Issue (3): 259-264. 上一篇    下一篇

研究论文

乳酸-丙酮-BrO3^--Mn^2^+-H2SO4化学振荡体系动力学研究

安从俊;庄林;刘义;林智信   

  1. 武汉大学化学系
  • 发布日期:1997-03-15

Kinetic study of lactic acid-actone-BrO3^--Mn^2^+-H2SO4 chemical oscillatory reaction

AN CUNGJUN;ZHUANG LIN;LIU YI;LIN ZHIXIN   

  • Published:1997-03-15

本文报道了与生命代谢过程密切相关的中间物参与的乳酸(以下简称LA)-丙酮(以下简称Act)-BrO3^--Mn^2^+-H2SO4新型化学振荡体系, 考察了振荡体系中诸反应物的初始浓度范围及影响因素, 获得诱导期、振荡周期、振荡寿命所对应的表观活化参数EIN, EP, EL分别为60.68kJ.mol^-^1, 61.03kJ.mol^-^1,135.80kJ.mol^-^1。分析了诱导期的新特征及可能的振荡反应机理。

关键词: 乳酸, 反应机理, 锰, 硫酸, 丙酮, 化学振荡, 溴酸

In this paper, a new type of chemical oscillatory reaction system: CH3CHOHCOOH-CH3COCH3-BrO3^--Mn^2^+-H2SO4 was reported. The initial concentration of each reactant and the affect factor were investigated, the activation parameter of inductory phase EIN, oscillatory period EP, oscillatory life EL were obtained, EIN=60.68kJ.mol^-^1, EP=61.03kJ.mol^-^1, EL=135.80kJ.mol^-^1. The new characteristics of inductory phase and the possible mechanism of oscillatory reaction were analyzed.

Key words: LACTIC ACID, REACTION MECHANISM, MANGANESE, SULFURIC ACID, ACETONE, CHEMICAL OSCILLATIONS, BROMIC ACID

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