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对苯二酚对Cu(Ⅱ)-H_2O_2-NaSCN振荡反应的影响
引用本文:向晓明,吕东煜,孙看军,任杰,高锦章.对苯二酚对Cu(Ⅱ)-H_2O_2-NaSCN振荡反应的影响[J].西北民族学院学报,2003,24(4):19-22.
作者姓名:向晓明  吕东煜  孙看军  任杰  高锦章
作者单位:西北民族大学化学系,西北师范大学化学化工学院,西北师范大学化学化工学院,西北师范大学化学化工学院,西北师范大学化学化工学院 甘肃兰州730030,甘肃兰州730070,甘肃兰州730070,甘肃兰州730070,甘肃兰州730070
基金项目:西北师范大学科技创新工程资助项目(KJCX-01)
摘    要:对苯二酚在碱性条件下对Cu催化H2O2和NaSCN的化学振荡反应(以下简称铜体系)的干扰,考察了在2.24×10-6-5.45×10-5mol·L-1和2.24×10-6-2.87×10-5mol·L-1范围内,对苯二酚的浓度与振荡反应的周期的改变△T1、△T2之间的关系 结合铜体系振荡反应的机理,提出了对苯二酚干扰振荡反应的机理,为其应用奠定基础

关 键 词:铜体系振荡反应  对苯二酚  机理
文章编号:1009-2102(2003)04-0019-04
修稿时间:2003年10月31

The Effect of Hydroquinone on Cu(Ⅱ) -H2O2- NaSCN Chemical Oscillation
XIANG Xiao-ming,LU Dong-yu,SUN Kan-jun,REN Jie,GAO Jin-zhang.The Effect of Hydroquinone on Cu(Ⅱ) -H2O2- NaSCN Chemical Oscillation[J].Journal of Northwest Minorities University(Natural Science ),2003,24(4):19-22.
Authors:XIANG Xiao-ming  LU Dong-yu  SUN Kan-jun  REN Jie  GAO Jin-zhang
Institution:XIANG Xiao-ming~1,LU Dong-yu~2,SUN Kan-jun,REN Jie~2,GAO Jin-zhang~2
Abstract:An analytical method for the determination Hydroquinone of by its perturbation on the copper(Ⅱ)-catalyzed oscillating reaction between hydrogen peroxide and sodium thiocyanate is proposed . The reaction is implemented in a steady closed system and changes in the oscillation period on each perturbation are proportional to the Hydroquinone concentration both from 2.24×10~(-6) to 5.45×10~(-5) mol·L~(-1)and from 2.24×10~(-6) to 2.87×10~(-5) mol·L~(-1), respectively. The method feature good precision due to the fact that the closed system has a noticeable stabilization. Some aspects of the interaction of Hydroquinone with the oscillation chemical system are discussed. This is first reported determination of Hydroquinone based on an oscillating reaction in the closed system.
Keywords:hydroquinone  oscillation  chemical reaction  mechanism
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