摘要
通过探讨反应物物料比和反应温度对反应产物的影响,得到了碱式碳酸铜制备实验的最佳条件是:Cu(NO3)2、NaOH和Na2CO3的物质的量之比为2∶1∶2,最佳反应温度为75℃。并将改进后的实验方法在学生实验中试验和推广。结果表明,改进后的实验方法学生易于掌握、实验现象明显、实验成功率高,收到了很好的教学效果。
The best experiment steps of making cupric subcarbonate from Cu（NO3）2,NaOH and Na2CO3 were obtained by probing into the reaction conditions.The results show that the optimum reaction conditions are as follows：reaction temperature is 75 ℃,the ratio of Cu（NO3）2/NaOH/ Na2CO3 is 2：1：2.And the improved experimental method was tested and extended in students＇ experiment.Practice shows that the new experimental method is easy to grasp by students,and the phenomenon is obvious and has a high successful rate.
出处
《实验技术与管理》
CAS
北大核心
2011年第9期39-40,43,共3页
Experimental Technology and Management
基金
2010年新世纪广西高等教育教改工程项目(2010JGZ007)
关键词
无机化学实验
碱式碳酸铜制备
最佳条件
inorganic chemistry experiment
prepartion of cupric subcarbonate
optimum condition
