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Citation: Liu Zhi-Jian, Cai Zun-Sheng, Ning Yu, Li Yan-Ni, Wang Gui-Chang, Zhao Xue-Zhuang. BrO^-₃-SO^2-₃-H^＋-KMnO₄ pH Oscillation Reaction[J]. Acta Physico-Chimica Sinica, ;2001, 17(08): 676-681. doi: 10.3866/PKU.WHXB20010802 shu

BrO^-₃-SO^2-₃-H^＋-KMnO₄ pH Oscillation Reaction

1.
Department of Chemistry,Nankai University,Tianjin　300071

Received Date: 12 December 2000
Available Online: 15 August 2001

Based on the BrO-3--H＋-KMnO4 pH oscillation system ,the effect of changing the reaction parameters on the properties of the oscillation system was studied.Some new phenomena,such as the color oscillation of MnO(OH)＋ and the appearance of MnO2 precipitation were found.These phenomena by our modified reaction mechanism including an autocatalytic process of MnO(OH)＋ were explained,and its phase diagram on the [KMnO4]-Kf plane was drawn( see Fig.7).
- pH oscillation;BrO^-₃;Reaction mechanism;Phase diagram
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沈阳化工大学材料科学与工程学院沈阳 110142

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BrO^-₃-SO^2-₃-H^＋-KMnO₄ pH Oscillation Reaction