【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.更多还原

【Abstract】 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.更多还原