Fe(Ⅲ)与ClO^-共热溶液中化学反应的分光光度法跟踪  

Reaction of Fe(Ⅲ) and ClO^- in Heated Solution Traced by Visible Spectrophotometry

作　　者：贾汉东[1] 王克栋[1] 李钢建[1] 鲍改玲[1] 

机构地区：[1]郑州大学化学系,郑州450001

出　　处：《郑州大学学报（理学版）》2009年第1期104-108,115,共6页Journal of Zhengzhou University:Natural Science Edition

基　　金：河南省教育厅科技攻关项目;编号200060001

摘　　要：Fe(Ⅲ)与次氯酸钠碱性混合溶液在较高温度下反应的最终产物除Fe(OH)3外,还有绿色Fe(Ⅳ)溶液生成.用分光光度法跟踪发现,绿色Fe(Ⅳ)是由中间产物Fe(Ⅵ)分解得到的.Fe(Ⅵ)在较高温度生成得更快、浓度更高,但也更易分解.结果表明,Fe(Ⅵ)、Fe(Ⅳ)溶液的最佳生成温度分别在50、80℃左右.Fe(Ⅲ) and alkali sodium hypochlorite solution are mixed at higher temperatures,and the final products include green Fe(Ⅳ) except ferric hydroxide.It is found that the green Fe(Ⅳ) is the decomposition product of intermediate Fe(Ⅵ) by spectrophotometry.When the temperature is higher,the generation of Fe(Ⅵ) becomes faster and the concentration gets to higher.Meanwhile the decomposition is also accelerated.Experiments have proved that the most suitable temperatures of preparing Fe(Ⅵ) and Fe(Ⅳ) respectively are ...

关 键 词：次氯酸盐 聚合硫酸铁 高铁(Ⅵ)酸盐 高铁(Ⅳ)酸盐 分光光度法 

分 类 号：O614.81[理学—无机化学]