摘要
本文利用实验中得到的电动势随时间变化的E～t图,研究了α—酮戊二酸(以α—Ke表示)—KBrO_3—H_2SO_4—丙酮(以Act表示)体系的Mn^(2+)催化下的振荡反应及许多因素对振荡反应的影响,根据实验结果及振荡反应的一般机理,探讨了该体系的振荡机理,归纳出振荡反应参数与反应物浓度之间存在的关系式,并对实验现象作了定性的说明。
In this paper,a new oscillation system of a-Keto-glutaric acid-KBrO_3-H_2SO_4-acetone. in the presence of Mn^2+as catalyst has been studied.The effects of many factors on the oscillation have been investigated.According to the experimental results and the general oscillating mecha- nism,the mechanism of this system has been proposed.It can explain the oscillation features suc- cessfully.Based on the experiments,the following relationship can be obtained: t_in∞[a-Ke]~0.36_0·[BrO^-_3]^-0.61_0·[Mn^2+]~0.41_0·[H_2SO_4]^-3.13_0[ACt]~1.20_0 t_p∞[1/(a-Ke)~2]^-0.27_0·[1/(Bro^-_3)~2]^-0.29_0·[Mn^2+]~0.32_0·[Act]^-1.13_0
关键词
振荡反应
催化
锰
酮戊二酸
α—Keto—glutaric
Oscillating Reaction
Mn^(2+)Ca+alyst
Reaction Mechanism
