| 木糖－BZ体系化学振荡反应的研究 |
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| 引用本文： | 李和兴,倪丽华,刘波,李鹏宏.木糖－BZ体系化学振荡反应的研究[J].上海师范大学学报(自然科学版),1996(3). |
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| 作者姓名： | 李和兴 倪丽华 刘波 李鹏宏 |
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| 作者单位： | 上海师范大学化学系 |
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| 摘 要： | 首次报道了ＢｒＯ３－－木糖－丙酮－Ｍｎ（２＋）－Ｈ２ＳＯ４体系统的化学振荡反应，测定了振荡反应的条件和典型的振荡波形，研究了反应物浓度，Ｃｌ－，Ｂｒ－，Ａｇ＋及丙烯腈等各种因素对振荡反应的影响，测定了温度对振荡诱导期，振荡周期的影响，并由此计算得到振荡反应的表观活化能．研究了各金属离子对振荡反应的影响以及Ｍｎ（２＋）的催化作用．考察了Ｎ２流代替丙酮时的振荡现象，从而对丙酮在振荡反应中的作用作了说明．分析了振荡反应的产物，并测定了体系中ＢｒＯ３－和木糖反应的化学计量关系，对振荡反应机理作了初步的探索．
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| 关 键 词： | 化学振荡 木糖 振荡参数 振荡机理 |
Study on the Chemical Oscillating Reaction in Xylose-BZ System |
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| La Hexing, Ni Lihua, Liu Bu, Li Penghong.Study on the Chemical Oscillating Reaction in Xylose-BZ System[J].Journal of Shanghai Normal University(Natural Sciences),1996(3). |
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| Authors: | La Hexing Ni Lihua Liu Bu Li Penghong |
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| Institution: | Department of Chemistry |
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| Abstract: | A new chemical oscillating raction in BrO3- -xylose-acetone-Mn2 -H2SO4 system (XYBZ system ) has been described. The oscillating Conditions and the typiCal oscillating wave have been determined. Effects of many factors, such as concentration have been studied. The effect of temperature on the induction period, oscillating period has also been detected, and the activation energy of the oscillation has been calculated. The catalyzing effect of several metal inns on the oscillation has been investigated. The reaction products and the total reaction equation gave been analyzed. The oscillating mechanism has been studied qualitatively according to the general oscillating mechanism-FKN mechanism. The roles of xylose and acetone in the oscillation have been explained. |
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| Keywords: | chemical oscillation xylose oscillating parameter oscillating mechanism |
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