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实验步骤:用向上排空气法收集一大试管氯气,加盖胶塞(不能用排饱和食盐水收集,否则胶塞塞不住),并固定在铁架台上。用长约10cm,内径约1cm的玻璃细管转动着插入吸掉煤油的钠块中,截取1cm左右的一段钠柱,并用小刀切去钠柱外端的氧化膜。用一支比玻璃管内径略细的玻璃棒,从管的上端插入,将其中的钠柱顶出管外些许,拔
Experimental procedure: Collect a large amount of chlorine gas in the upward-discharging air method, cover the rubber stopper (cannot be collected with saturated brine, otherwise the rubber stopper cannot be stopped), and fix it on the iron stand. Using a glass tube about 10 cm long and having an inner diameter of about 1 cm, rotate and insert a sodium block that sucks out kerosene, cut a sodium column of about 1 cm, and cut the oxide film on the outer end of the sodium column with a knife. Using a glass rod with a slightly smaller diameter than the glass tube, insert it from the top of the tube and push the sodium column out of the tube slightly.