大学化学 >> 2022, Vol. 37 >> Issue (11): 2206093.doi: 10.3866/PKU.DXHX202206093

所属专题： 无机化学课程教学(2022)

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关于金属含氧酸盐热稳定性的讨论

卢静(), 李大成, 康文君, 李蕾, 王素娜   

  • 收稿日期:2022-06-29 录用日期:2022-08-02 发布日期:2022-10-08
  • 通讯作者: 卢静 E-mail:lujing@lcu.edu.cn
  • 作者简介:卢静, Email: lujing@lcu.edu.cn

Discussion on the Thermal Stabilities of Metallic Oxysalts

Jing Lu(), Dacheng Li, Wenjun Kang, Lei Li, Suna Wang   

  • Received:2022-06-29 Accepted:2022-08-02 Published:2022-10-08
  • Contact: Jing Lu E-mail:lujing@lcu.edu.cn

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摘要：

利用归纳、对比、推断、验证的分析方法总结了含氧酸盐的热分解反应规律，并利用化学热力学基本原理深入解释了产生规律的原因以及个别盐热分解产物的特殊性。研究发现，金属离子的极化力、酸根中心原子的极化力、酸根的氧化性、产物中气体分子的数目均对含氧酸盐的热稳定性存在影响。

关键词: 含氧酸盐, 热分解反应, 化学热力学原理, 离子极化力

Abstract:

In this paper, the rules of thermal decomposition reaction of metallic oxysalts were summarized. The reasons of the rules and the particularity of the thermal decomposition products of some salts were explained through the basic principles of chemical thermodynamics. It was found that the polarization force of metal ions, the polarization force of the central atom of the acidic group, the oxidation property of the acidic group and the number of gas molecules in the product all have effects on the thermal stability of the ionic polarization force.

Key words: Oxysalt, Thermal decomposition reaction, Principles of chemical thermodynamics, Ionic polarization force