A further advantage of this method of working is that the sodium alcoholate can very conveniently be made by mixing the sodium with a proportion of the hydrocarbon which is to be used as the solvent for the reaction and adding the required amount of the alcohol thereto 另外这种方法还有一个优点:纳和一定比例的碳氢化合物混合在加入所需数量的乙醇可以方便制备乙醇纳,而碳氢化合物可以作为溶剂使用。