无机化学实验教学中配合物[Co(NH_3)_5Cl]Cl_2的制备方法改进  

Improvement on the Preparation Method of A Complex [Co(NH_3)_5Cl]Cl_2 for Undergraduate Inorganic Chemistry Experiment

作　　者：易正戟[1] 刘洋[1] 毛芳芳[1] 崔莺[1] 陈满生[1] 

机构地区：[1]衡阳师范学院化学与材料科学学院,功能金属有机材料湖南省高校重点实验室,湖南衡阳421008

出　　处：《广州化工》2016年第21期158-159,共2页GuangZhou Chemical Industry

基　　金：湖南省普通高校教学改革研究立项项目(湘教通[2016]400号(序号557));湖南省重点学科基金

摘　　要：配位化合物[Co(NH3)5Cl]Cl2的制备是大学无机化学课程中一个重要的无机合成实验,但按照教材中的步骤进行操作,不但产率低、易生成其它副产物,而且HCl和NH3气体的挥发容易造成大气污染;同时,目标配合物的检测会造成大量贵重试剂Ag NO3的浪费。基于绿色化学理念,针对教材中"一种Co(III)配合物的制备"相关的关键步骤和药品用量进行了改进和创新,节省了Ag NO3试剂的用量,提高了产品的产率和纯度,同时也达到了环保的效果。Preparation of the coordination compound [ Co （NH3 ）5 C1 ] C12 is an important inorganic synthesis experiment for the undergraduate Inorganic Chemistry course. However, according to the textbook operation, not only the yield of target product was low and some by-products were produced, but also the volatilization of HC1 and Nit3 would cause atmosphere pollution. Meanwhile, the target coordination compound detection gave rise to the waste of much valuable reagent AgNO3. On the basis of green chemistry principle, the key procedure and reagent dosage for the undergraduate Inorganic Chemistry experiment＇ for preparing a kind of Co （III） complex were improved. Therefore, the reactant amount of AgN03 was saved, the yield and purity of the coordination product were increased, and the effect of environmental protection was also achieved.

关 键 词：绿色化学 钴(Ⅲ)配合物 制备 改进 

分 类 号：O61-4[理学—无机化学]