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一、实验仪器的安装 1.实验仪器 200——250毫升的抽滤瓶1个,分液漏斗1个,横孔试管2—3个,250毫升的烧杯1个,带暗孔的单孔胶塞1个。 2.部分仪器的制作方法 (1)横孔试管的制作用酒精喷灯将试管加热至红热使其软化,同时把玻璃棒放在喷灯上烧熔融,用熔融的玻
First, the installation of experimental equipment 1. Experimental equipment 200 - 250 ml filter bottle 1, a separatory funnel, 2-3 cross-hole tube, 250 ml beaker, with a hole in the single hole plastic Plug one. 2. Method of making some instruments (1) Preparation of horizontal-hole test tube The test tube was heated to red heat to soften it with an alcohol torch. At the same time, the glass rod was placed on the torch to be melted and melted.