University Chemistry ›› 2022, Vol. 37 ›› Issue (2): 2106011.doi: 10.3866/PKU.DXHX202106011

Special Issue:

• Chemistry Laboratory • Previous Articles     Next Articles

Thermochromic Phenomena in "Elemental Chemistry Experiments" (Ⅱ): Thermochromic Phenomenon and Discussion on Thermochromic Mechanism of Some Cr(III)) Compounds

Chanzi Ruan, Zhenling Xu, Rui Pan, Chunyan Zhang, Yinyun Lü, Yuhua Weng, Zhiqiang Dong, Yanping Ren()   

  • Received:2021-06-07 Accepted:2021-08-14 Published:2021-09-24
  • Contact: Yanping Ren E-mail:ypren@xmu.du.cn

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Abstract:

Based on the understanding of the thermochromic phenomenon and mechanism of some Co(II) compounds, the problem "situation" was created according to the situation. Namely, through vivid and intuitive demonstration experiments, students are guided to further understand the thermochromic phenomenon of some Cr(III) compounds and its influencing factors, and to explore and explain the thermochromic mechanism. It also furtherly cultivate the students' ability of observation, analysis, judgment, induction, reasoning, summary and exploration of laws and "critical" thinking.

Key words: Cr(III) compounds, Thermochromism, Influencing factors, Discussion on thermochromic mechanism