β-氨基乙醇-溴酸钾-硫酸锰-硫酸-丙酮体系的振荡反应研究

A Study on the Chemical Oscillating Reaction in the System of β-aminoethol-Acetone-BrO_3^--Mn_2^+-H_2SO_4

对以β-氨基乙醇为底物、硫酸锰为催化剂、溴酸钾作氧化剂、硫酸为介质的化学振荡反应新体系进行了研究 ,描述了该体系的振荡特性 ,研究了各物质初始浓度、反应温度、还原性物质 (维生素C和葡萄糖 )、丙烯腈、Ag+ 和 CCl4对振荡行为的影响。该振荡反应诱导期、周期与反应温度间的关系符合Arrhenius方程。测得反应诱导期活化能 Ein=70 .2 1 k J/mol,周期活化能 Ep=86.91 k

The chemical oscillating reactions in the system of β aminoethol acetone BrO 3 - Mn 2 + H 2SO 4 is studied in the batch reactor. Effects of many factors on the oscillation have been ex\|amined. The effect of concentration of reactants, reaction temperature, Ag +, CCl 4, Vc, glu\|cose, acylonitrile on the oscillating reaction is also under investigation. The relationship between the inductory phase, period phase and temperature is in good agreement with Arrhenius' equation. The obtained activation energy of the oscillations are 70.21 kJ/mol ( E in ) and 86.91 kJ/mol ( E p). The mechanism of the oscillations is also discussed briefly.