BrO_3^--SO_3^(2-)-H^+-KMnO_4系pH振荡反应

BrO_3^-- SO_3^(2-)-H^+-KMnO_4 pH Oscillation Reaction

在ＢｒＯ 3~－-ＳＯ_３^（２－）-Ｈ~＋-ＫＭｎＯ_４振荡体系的基础上，通过改变反应参数，研究了对体系振荡现象的影响，发现了一些新的现象，如颜色的振荡，无沉淀的高ｐＨ值稳态及沉淀的生成等，并结合我们的实验对现象进行了解释，对前人提出的机理进行了改进，在此基础上绘制了ＫＭｎＯ４的浓度对ＣＳＴＲ的总流量的相图（［ＫＭｎＯ４］－Ｋｆ）

Based on the BrO_3~－-SO_3^(2-) -H + -KMnO_4 pH oscillation system, the effect of changing the reaction pa- rameters on the properties of the oscillation system was studied. Some new phenomena, such as the color oscilla- tion of MnO(OH) + and the appearance of MnO2 precipitation were found. These phenomena by our modified re- action mechanism including an autocatalytic process of MnO(OH) + were explained, and its phase diagram on the [KMnO4] - Kf plane was drawn (see Fig. 7 ).