高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (6): 871.

• 研究简报 • 上一篇    下一篇

铬(Ⅵ)在过氧化氢氧化碘离子反应中的动力学行为的研究

朱仲良1, 顾志澄1, 陈荣妹2   

  1. 1. 上海同济大学化学系, 上海, 200091;
    2. 常州武进化学工业公司, 常州
  • 收稿日期:1994-06-29 修回日期:1994-11-12 出版日期:1995-06-24 发布日期:1995-06-24
  • 通讯作者: 朱仲良,男,33岁,硕士,讲师.
  • 作者简介:朱仲良,男,33岁,硕士,讲师.

Studies on the Kinetic Behaviour of Cr(Ⅵ)in the Reaction Between Hydrogen Peroxide and Iodide

ZHU Zhong-Liang1, GU Zhi-Cheng1, CHEN Rong-Mei2   

  1. 1. Dept.of Chem.Tongji Univ., Shanghai 200092;
    2. Wujin Chem Industry Co.
  • Received:1994-06-29 Revised:1994-11-12 Online:1995-06-24 Published:1995-06-24

关键词: 铬(Ⅵ)-碘离子-过氧化氢体系, 动力学分析, 反应级数

Abstract: The Kinetic behaviour of Cr(Ⅵ)in the reaction between I-and H2O2in dilute H2SO4medium was investigated.It is found that Cr(Ⅵ)does not act as a catalyst of reaction between I-and H2O2but act directly as a oxidizing agent of I-.Amethod for calculating the reaction order is also proposed.It is unnecessary to know the concentration of reactant when this method is used.A Kinetic method for the simultaneous determination of Cr(Ⅵ)and Mo(Ⅵ)is proposed.The linear ranges of determination are 30~300 ng/mL for Cr(Ⅵ)and 2~20 ng/mL for Mo(Ⅵ),respectively.

Key words: Cr(Ⅵ)-I--H2O2system, Kinetic analysis, Reaction order

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