高等学校化学学报

高等学校化学学报 ›› 1989, Vol. 10 ›› Issue (2): 203.

• 研究简报 • 上一篇    下一篇

硝酸钐水合物热分解过程的研究

高胜利, 杨祖培, 谭钦德, 刘翊纶   

  1. 西北大学化学系
  • 收稿日期:1987-06-04 出版日期:1989-02-24 发布日期:1989-02-24
  • 通讯作者: 高胜利
  • 基金资助:

    国家自然科学基金

Study on Thermolysis Process of Samarium Nitrate Hydrates

Gao Shengli, Yang Zupei, Tan Qinde, Liu Yilun   

  1. Department of Chemistry, Northwest University, Xi'an
  • Received:1987-06-04 Online:1989-02-24 Published:1989-02-24

PDF (PC)

被引次数

1

摘要： Sm(NO3)3·6H2O热分解过程的研究工作虽有文献报道,但结果不尽相同。文献[2]不同于文献[1,3],认为分解过程中存在无水盐阶段;文献[3]不同于文献[1,2],认为分解过程中存在低水合物。而且文献尚缺低水合物热分解机理的报道。我们也曾做过一些工作,但脱水阶段也不详尽。

关键词: 硝酸钐水合物, 热分解, 表观活化能, 脱水焓

Abstract: The thermal decomposition of Sm(NO3)3·nH2O(n=6,5,4) has been studied with TG-DTG. The reactants, intermediates and end-products have also been characterized by IR.In addition,the apparent activation energies of dehydration were calculated with Kissinger method by means of TG-DTG curves at various step-up temperature rates and the enthalpies of dehydration were found by DSC.

Key words: samarium nitrate hydrates, Thermolysis, Apparent activation energies, Enthalpies of dehydration

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