高等学校化学学报

高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (6): 1025.

• 研究简报 • 上一篇    下一篇

从铜离子的作用研究Orbán振荡体系中的动力学特征

高庆宇1, 孙康1, 李兰萍1, 蔡遵生2, 赵学庄2   

  1. 1. 中国矿业大学化工学院, 徐州 221008;
    2. 南开大学化学系, 天津 300071
  • 收稿日期:2000-05-11 出版日期:2001-06-24 发布日期:2001-06-24
  • 通讯作者: 高庆宇(1966年出生),男,博士,副教授,从事非线性化学动力学研究.E-mail:gaoyu1@public.xz.js.cn E-mail:gaoyu1@public.xz.js.cn
  • 基金资助:

    国家自然科学基金(批准号:29573109);中国矿业大学科技基金资助

Studies on the Kinetic Feature of Orbán Oscillation System from the Role of Cupric Ion

GAO Qing-Yu1, SUN Kang1, LI Lan-Ping1, CAI Zun-Sheng2, ZHAO Xue-Zhuang2   

  1. 1. Collegeof Chemical Engineering, China University of Miningand Technology, Xuzhou 221008, China;
    2. Departmentof Chemistry, Nankai University, Tianjin 300071, China
  • Received:2000-05-11 Online:2001-06-24 Published:2001-06-24

PDF (PC)

关键词: 铜离子, pH, 非线性反应

Abstract: In the H2O2-KSCN-CuSO4-NaOHreaction system, cupric ion plays an essential role for batch and CSTRoscillation. Since Cu 2+(or Cu+) can be precipitated as CuOH, CuSCNand Cu(OH)2, its concentration has a complex influence on the amplitude and initial high flowrate of oscillation. The pHdrop resulted from the oxidation of KSCNby hydrogen peroxide inhibited the oscillation. The kinetic nature of oscillation should be the H2O2 decomposition catalyzed by cupric and thiocyanate.

Key words: Cupric ion, pH, Nonlinear reaction

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