苯酚在通常温度下是固体，与钠不能顺利发生反应，有的老师采用加热熔化苯酚，再加入金属钠的方法进行实验，但苯酚易被氧化，在加热时苯酚颜色发生变化而影响实验效果。本人在教学中采取下面的方法实验，操作简单，取得了满意的实验效果。在一支试管中加入２～３毫升无水乙醚 Phenol is a solid at normal temperature, and sodium does not react smoothly. Some teachers use the method of heating and melting phenol and then adding sodium metal. However, phenol is easily oxidized, and the color of phenol changes when heating, which affects the experimental results. I used the following method to experiment in my teaching. The operation was simple and satisfactory experimental results were obtained. Add 2 to 3 ml of anhydrous ether to a test tube