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在做“纳在氯气中燃烧”这个演示实验时,许多教师和有关人员动了很多脑筋,设计了各种实验方案,以期取得最理想的效果。但每一种方案实施过程中都出现这样那样的缺点和不足之处,很难收到完美理想的效果。课本上利用铜燃烧匙的方法的缺点是铜燃烧匙当钠在氯气中燃烧时也参加反应,
In the demonstration experiment of “combusting in chlorine gas”, many teachers and related personnel had a lot of brains and designed various experimental programs in order to achieve the best results. However, there are such shortcomings and shortcomings in the implementation of each program, it is difficult to receive the perfect ideal results. The disadvantage of using a copper burning spoon in textbooks is that copper burning spoons also participate in the reaction when sodium burns in chlorine gas.