不同量Fe(Ⅲ)与ClO^-热碱溶液化学反应的跟踪观察  

Tracing Reactions Between Different Quantity of Ferric Compound and ClO^- in High Alkaline Hot Solution

作　　者：贾汉东[1] 李小燕[1] 关彩霞[1] 鲍改玲[1] 

机构地区：[1]郑州大学化学系

出　　处：《化学研究》2008年第3期17-19,共3页Chemical Research

基　　金：河南省教育厅科技攻关资助项目(200060001)

摘　　要：取不同量的Fe(Ⅲ)分别与高碱度NaClO溶液共热到80℃反应,采用分光光度法依次跟踪各反应体系,发现Fe(Ⅲ)首先被氧化为Fe(Ⅵ)紫色溶液,接着Fe(Ⅵ)快速分解生成Fe(OH)3沉淀,同时体系中还存在着Fe(Ⅵ)氧化Fe(Ⅲ)生成Fe(Ⅳ)的反应.绿色的Fe(Ⅳ)溶液更稳定,且Fe(Ⅳ)的生成浓度随Fe(Ⅲ)加入量的递增而升高.The reaction of ferric compound with sodium hypochlorite at 80℃ in high alkaline solution was traced using spectrophotometry method. The ferric compounds were oxidized firstly to generate the purple ferrate（Ⅵ） solution, then the ferrate（Ⅵ） was decomposed into ferric hydroxide precipitation, and at the same time the ferric compounds was oxidized into ferrate（Ⅳ） by the ferrate（Ⅵ） in the reaction system. The green ferrate（Ⅳ） solution was more stable, and the concentration of ferrate（Ⅳ） was increased with the rising of dosage of ferric compound.

关 键 词：高铁酸钠 Fe(Ⅵ) Fe(Ⅳ) 氧化还原反应 分光光度法 

分 类 号：O614.81[理学—无机化学]