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Citation: TIAN Xiaocong, LU Changsheng, WANG Fengbin, LIU Bin, MA Haifeng, WANG Qing. Recycle of Heavy Metal Chemical Reagents: A Case Study of “Preparation and Analyses of Complex[Co(NH₃)₆]Cl₃”[J]. University Chemistry, ;2019, 34(9): 101-105. doi: 10.3866/PKU.DXHX201903034 shu

Recycle of Heavy Metal Chemical Reagents: A Case Study of “Preparation and Analyses of Complex[Co(NH₃)₆]Cl₃”

National Demonstration Center for Experimental Chemistry Education(Nanjing University), School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China

Received Date: 31 March 2019

A new experiment, Recycle of cobalt and silver, has been designed, based on the original experiment "Preparation and analyses of complex[Co(NH₃)₆]Cl₃". Both cobalt and silver are heavy metals, which can cause serious environmental pollution. In our experiments, cobalt chloride was recovered from the product[Co(NH₃)₆]Cl₃, and silver nitrate was extracted from the byproduct in the process of chlorine content determination. Therefore, both the above-mentioned heavy metals can be recycled. Our experimental design has been proved to be able to promote studying interests of students, enhance environmental awareness of students, and in the meantime reduce experimental costs.
- General chemistry experiment,
- Heavy metal,
- Recycling of reagents
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通讯作者: 陈斌, bchen63@163.com

Recycle of Heavy Metal Chemical Reagents: A Case Study of “Preparation and Analyses of Complex[Co(NH₃)₆]Cl₃”