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Citation: WANG Kang, ZHANG Jia-Bao, MA Yong-Wang, SHE Tong-Tong, TIAN Hua, HAN Xiao-Xia. Study on the Improvement of a College Comprehensive Chemical Experiment: Preparation of Hexamine Cobalt(Ⅲ) Chloride[J]. University Chemistry, ;2017, 32(12): 74-78. doi: 10.3866/PKU.DXHX201707013 shu

Study on the Improvement of a College Comprehensive Chemical Experiment: Preparation of Hexamine Cobalt(Ⅲ) Chloride

School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, P. R. China

The experiment of hexamine cobalt(Ⅲ) chloride preparation is a comprehensive inorganic chemistry experiment, several kinds of harmful volatile reagents are used, such as concentrated hydrochloric acid, ammonia, hydrogen peroxide solution. So we explore the reaction condition to improve synthesis method. The concentration of hydrochloric acid has been decreased, the efficient value of which ranges from 3.0 mol·L^-1 to 6.0 mol·L^-1. The improvements of preparing[Co(NH₃)₆]Cl₃ are rarely reported.
- Hexamine cobalt(Ⅲ) chloride,
- Prepare,
- Improvement,
- Hydrochloric acid concentration
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