高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (4): 397.

• 研究论文 • 上一篇    下一篇

异硫氰酸镧环丁砜配合物的合成及其热分解非等温动力学研究

索掌怀, 孙同山, 蒋本杲, 尹敬执   

  1. 西北师范大学化学系
  • 收稿日期:1988-08-02 出版日期:1990-04-24 发布日期:1990-04-24
  • 通讯作者: 孙同山

Synthesis and Studies on the Non-Isothermal Kinetics of Thermal Decomposition of La(NCS)3·3TMSO2

Suo Zhanghuai, Sun Tongshan, Jiang Bengao, Yin Jingzhi   

  1. Department of Applied Chemistry, Shandong University, Jinan
  • Received:1988-08-02 Online:1990-04-24 Published:1990-04-24

摘要: 合成了异硫氰酸镧环丁砜配合物[La(N(CS)3·3TMSO2],并进行了热分解非等温动力学研究。运用Achar法与Coats-Redfern法对非等温动力学数据进行分析,推断该热分解为二级反应,其动力学方程为da/dt=AeE/RT·(1-a)2,动力学补偿效应表达式为InA=0.218E-0.637。

关键词: 异硫氰酸镧, 环丁砜, 热分解, 非等温动力学

Abstract: The complex of lanthanum isothiocynate with sulfolane was synthesized. The kinetics of thermal decomposition of the complex was studied under non-isothermal condition. The non-isothermal kinetic data were analyzed by means of the Achar method and the Coats-Redfern method. The possible reaction mechanism was suggested by comparison of the kinetic parameteres. The results show that this thermal decomposition is a second order reaction. The kinetic equation may be expressed as :da/dt = AeE/RT · (1 - a)2.Mathematical expression of the kinetic compensation effect is found to be:InA = 0.218E - 0.637.

Key words: Lanthanum Jsothiocyanate, SulfoJane, Thermal decomposition, Non-isothermal kinetics

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