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按照高中化学教材第二册介绍的银镜反应实验步骤,在实际操作中因诸多因素的影响,往往不能得到满意的现象。若用以下改进方法则可得到较理想的结果。一、实验准备配制1.5mol/L 硝酸铵溶液、0.5mol/L 硝酸银溶液,2.5mol/L 氢氧化钠溶液各100毫升。准备一瓶带滴管的乙醛溶液(或其他醛基化合物)。三支大试管,三支10mL 量筒,三支胶头滴管。
In accordance with the high school chemistry textbook second introduction of the silver mirror reaction experiment steps in the actual operation due to many factors, often can not be satisfied with the phenomenon. If you use the following improvements you can get better results. First, the experimental preparation Preparation of 1.5mol / L ammonium nitrate solution, 0.5mol / L silver nitrate solution, 2.5mol / L sodium hydroxide solution 100ml each. Prepare a vial of acetaldehyde solution (or other aldehyde-based compounds) with a dropper. Three large test tube, three 10mL graduated cylinder, three plastic head dropper.