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一、发现问题为了准备海波(硫代硫酸钠)的熔化和凝固实验,我想自己先做一遍以期做到心中有数。我用水浴法加热,注意控制海波与水之间的水温差始终保持在1℃～2℃。在海波全部熔化后,我得到了相应的实验数据。正当我沉浸在实验中时,一阵急促的电话铃声响起,我不得不熄灭酒精灯匆匆离开了实验室。下午,
First, the discovery of problems In order to prepare Hayao (sodium thiosulfate) melting and solidification experiments, I would like to do it again in order to achieve my heart. I use water bath heating method, pay attention to control the sea water and water temperature difference between the always maintained at 1 ℃ ~ 2 ℃. After all the waves were melted, I got the corresponding experimental data. While I was immersed in the experiment, a rapid phone ring rang, I had to put out the alcohol lamp hastily left the laboratory. in the afternoon,