| 3,4-二羟基苯甲酸-BrO3——Fe(phen)32+-H2SO4体系中的振荡现象 |
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| 引用本文： | 李和兴,蒋萍初,许海涵.3,4-二羟基苯甲酸-BrO3——Fe(phen)32+-H2SO4体系中的振荡现象[J].高等学校化学学报,1991,12(10):1400. |
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| 作者姓名： | 李和兴 蒋萍初 许海涵 |
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| 作者单位： | 上海师范大学化学系, 上海, 200234 |
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| 摘 要： | 在Belousov-Zhabotinsky(BZ)反应中,Br-通常起控制作用,初始加入少量的Br-可抑制振荡。
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| 关 键 词： | 3 4-二羟基苯甲酸 Belousov-Zhabotinsky反应 振荡频率 |
| 收稿时间： | 1990-06-05 |
Oscillating Phenomena in 3,4-Dihydroxybenzoic Acid-BrO_3--Fe(phen)32+-H2SO4 System |
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| La He-xing,Jiang Ping-chu,Xu Hai-han.Oscillating Phenomena in 3,4-Dihydroxybenzoic Acid-BrO_3--Fe(phen)32+-H2SO4 System[J].Chemical Research In Chinese Universities,1991,12(10):1400. |
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| Authors: | La He-xing Jiang Ping-chu Xu Hai-han |
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| Affiliation: | Department of Chemistry, Shanghai Normal University, Shanghai, 200234 |
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| Abstract: | Anew oscillating system. 3,4-dihydroxybenzoic acid-BrO3--Fe(phen)32+-H2SO4system was studied in detail. The role of bromide ion in the oscillation was investigated. The initial addition of bromide ion to the system produced a variety of phenomena depending on the initial bromide concentration. In certain range concentration of bromide, the system displays two types of oscillating waves, one is a low-frequency oscillating wave and the other is a high-frequency oscillating wave. Both of these oscillations are controlled by bromide ions. When bromide concentration is lower than 2. 3 ×10-3mol/L, only low-frequency oscillating wave appears, and when bromide concentration is more than 2. 9×10-3mol/L, only high-frequency oscillating wave appears. The role of bromide in this system was analyzed and the mechanism of bromide in the oscillation was proposed. |
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| Keywords: | 3 4-Dihydroxybenzoic acid Belousov-Zhabotinsky(BZ) reaction Oscillating frequency |
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