草酸亚铁制备及组分测定综合实验之更新探索

doi:10.3866/PKU.DXHX201810005

University Chemistry ›› 2019, Vol. 34 ›› Issue (5): 42-45.doi: 10.3866/PKU.DXHX201810005

• Chemistry Laboratory • Previous Articles Next Articles

Improvement of the Experiment of "Preparation and Composition Determination of Ferric Oxalate"

Li ZHANG,Wei ZHANG,Li HAN,Jiantao ZAI,Hongjin CHEN,Li MA*()

School of Chemistry and Chemical Engineering, Shanghai Jiaotong University, Shanghai 200240, P. R. China

Received:2018-10-15 Accepted:2018-10-31 Published:2018-11-14
Contact: Li MA E-mail:mali@sjtu.edu.cn
Supported by:
上海交通大学教学发展基金(CTLD18B0002)

Abstract

Abstract:

In the laboratory teaching, it is an important part of the talent training goal for chemistry specialty to increase the comprehensive experimental content and set up the research-oriented, explorative and innovative experiments. Taking the experiment of "preparation and composition determination of ferric oxalate" as an example, by improving the experimental method, the students are guided to use comprehensively the theoretical knowledge to design the experimental scheme. Through the comprehensive experiment training, the students' understanding of the experiment and scientific research methods is enhanced, and their experimental skills and ability of cooperation and communication are improved.

Key words: Comprehensive experiment, Improvement of the experimental method, Preparation and composition determination of ferric oxalate

MSC2000:

Li ZHANG,Wei ZHANG,Li HAN,Jiantao ZAI,Hongjin CHEN,Li MA. Improvement of the Experiment of "Preparation and Composition Determination of Ferric Oxalate"[J].University Chemistry, 2019, 34(5): 42-45.

Figures/Tables 1

References 8

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测定方法	n(Fe²⁺) : n(C₂O₄^2-)
测定方法	1组	2组	3组	4组	5组	6组	7组	8组	9组	10组
传统KMnO₄氧化滴定法	1.171	1.210	0.872	1.281	1.254	1.156	0.853	1.183	0.842	1.22
加盐酸羟胺	1.083	1.112	1.011	1.156	1.248	1.083	1.021	1.053	1.081	1.16
改进后方法	1.071	1.082	0.951	1.132	1.112	1.005	0.962	1.021	0.971	1.06

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Improvement of the Experiment of "Preparation and Composition Determination of Ferric Oxalate"

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