| 葡萄糖B-Z体系中酸度变化诱导的复杂振荡反应 |
| COMPLEX OSCILLATION IN THE GLUCOSE-BZ SYSTEM INDUCED BY THE CHANGE OF ACIDITY |
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| 摘要: 本文首次报导了葡萄糖-KBrO3-丙酮-MnSO4-H2SO4体系的化学振荡反应,在这一体系中改变酸度可产生一系列复杂的振荡现象,当[H2SO4]0>0.36mol·l-1或[H2SO4]0<0.074mol·l-1时,体系分别出现二种不同类型的振荡波形OA和OB,OA振荡存在一诱导期,OB振荡无锈导期;OA的振幅较小,但振荡频率比OB快得多;OB的振荡周期逐渐缩短,但OA.却相反变化.当0.074mol·l-1<[H2SO4]0<0.36mol·l-1时,体系同时出现上述二种类型的振荡波形,中间存在一过渡区域,即产生连续振荡波形.文章讨论了诱导期及过渡时间与[H2SO4]0的关系,对酸度的影响机理作了说明. |
| 关键词: Belousov-Zhabotinsky(B-Z)振荡反应 葡萄糖(Glu) 硫酸 振荡周期(tp) 振荡诱导期(tm) |
| 基金项目: |
| Abstract: Changing the concentration of sulfuric acid in glucosc-KBrO3-acctone-MnSO4 -H3SO4 system induces a scries of complex oscillating phenomena. There are two different kinds oscillating waves(OA and OB)which appear when the concentration of sulfuric acid is over 0.36mol·l-1 or below 0.074mol·l-1. When the concentration of sulfuric acid is in the range of 0.074 mol·l-1 to 0.36mol·l-1, the subsequent oscillating waves divided by the transient area could be observed. Experiments show that oscillation in arca(I)is OB and in area(Ⅲ)is OA. The relationship between the induction period, oscillating period and the transient period with the concentration of sulfuric acid arc obtained and the mechanism of effects of acidity on the oscillating reaction arc discussed. |
| Keywords: Belousov-Zhabotinsky(B-Z)reaction glucose(Glu) oscillating period(tp)induction period(tm) |
| 投稿时间：1989-06-29 |
| 摘要点击次数: 1577 |
| 全文下载次数: 1567 |
| 李和兴.葡萄糖B-Z体系中酸度变化诱导的复杂振荡反应[J].无机化学学报,1991,7(4):434-438. |
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