New characteristics of the inductory phase and kinetic study of DL malic acid acetone BrO3- Mn2+ H2SO4 chemical oscillatory reaction

被引：0

作者：

An, CJ ^{[1
]}

Gan, NQ ^{[1
]}

Liu, Y ^{[1
]}

Li, JF ^{[1
]}

Lin, ZX ^{[1
]}

机构：

[1] Wuhan Univ, Dept Chem, Wuhan 430072, Peoples R China

来源：

ACTA CHIMICA SINICA | 1998年 / 56卷 / 10期

关键词：

DL-malic acid; chemical oscillatory reaction; introductory phase; mechanism;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

As an extension of our previous study, this paper reports a new type of oscillatory reaction system: DL - malic acid (abbreviated to DL - MA)-CH3COCH3 (abbreviated to Act)-Mn2+-H2SO4, and all factors that affect the reaction. The role of each reactant in the inductory phase, the cause of oscillation,the new characteristics of the inductory phase and possible mechanism of oscillatory reaction have been investigated. The simulation equations in which the inductory phase is affected by concentration of DL - MA, KBrO3 and MnSO4 are obtained: t(IN)(c(DL-MA)) = - 0.051 +/- 0.096/(c(DL-MA) - 0.181) (where Act existed) t(IN)(c(DL-MA)) = - 0.24 + 0.224/(c(DL-MA) - 0.0485) (where Act does not existed) t(IN)( c(KBrO3)) = 73. 429 c(KBrO3), + 1.275 t(IN)(c(MnSO4)) = 99.5 c(MnSO4) + 4.2 The activation parameter of the inductory phase, E-IN is 68.50 kJ.mol(-1).

引用

页码：973 / 978

页数：6