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Fe(Ⅱ)对Cr(Ⅳ)─I~-体系诱导反应机理的研究
引用本文:闫永胜,于亚丽,杨景海,左本成,傅承光. Fe(Ⅱ)对Cr(Ⅳ)─I~-体系诱导反应机理的研究[J]. 河北大学学报(自然科学版), 1995, 0(4)
作者姓名:闫永胜  于亚丽  杨景海  左本成  傅承光
作者单位:四平师范学院化学系
摘    要:本文考查了下Fe(Ⅲ)-I-、Cr(Ⅳ)-I-及Cr(Ⅳ)-I-Fe(Ⅱ)体系的反应曲线,证明由于Fe(Ⅱ)的引入,体系产生Cr(V)中间体并快速氧化I-;通过实验确定Cr(Ⅳ)-I--Fe(Ⅱ)体系的化学计量关系,导出了诱导反应的机理及速率方程,并通过反应曲线的研究进一步证实了反应机理。

关 键 词:Fe(Ⅱ);Cr(Ⅳ)-I~-体系;诱导反应机理

Study on Reaction Mechanism of Cr(Ⅳ)-I ̄- System Induced by Fe(Ⅱ)
Yan Yongsheng, Yu Yali, Yang Jinghai. Study on Reaction Mechanism of Cr(Ⅳ)-I ̄- System Induced by Fe(Ⅱ)[J]. Journal of Hebei University (Natural Science Edition), 1995, 0(4)
Authors:Yan Yongsheng   Yu Yali   Yang Jinghai
Abstract:The reaction mechanism of Cr(Ⅳ)- I- system induced by Fe(Ⅱ) was studied by spectrophotometry. It was found that under the induction of Fe(Ⅱ) and Cr(V) as an intermediate is first fomied, then it oxidizes I to i2 rapidly. The stoichiometric relationship of Cr(Ⅳ)-I-Fe(Ⅱ) reaction system was determined experimentally. Based on the experimental results a mechanism of the induced oxidation reaction was proposed and the rate equation was also derived.
Keywords:Fe(Ⅱ)Cr(Ⅳ)-I ̄- system Reaction mechanism
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