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1956年3月号化学通报发表了两篇关于氨碱法实验的文章:一篇是连砚秋、夏岑霄雨同志写的,他们将食盐氨水溶液10毫升在比较低的温度通入猛烈的CO_2气流六十分钟(文章里说最好静置过夜)。这个实验的装置和操作都很简单,但通气时间太长,不适合于课堂实验。另一篇文章是苏州高级中学化学教研组的同志写的,他们用NaOH溶液处理食盐水里所含的镁盐杂质,而后通入NH_3和CO_2,经薛幼信同志等著文在同年10月号化学通报上指出这种处理法的缺点。薛同志等并建议加入(NH_4)_2CO_3以缩短实验时间,但我认为
March 1956 Chemical Bulletin published two articles on the ammonia-base experiment: one is Yan Lian Qiu, Comrade Xia Cenxu rain wrote, they salt water ammonia solution 10 ml at a relatively low temperature into the violent CO 2 airflow Sixty minutes (the article said best to stay overnight). The setup and operation of this experiment are very simple, but the ventilation time is too long, not suitable for classroom experiments. Another article was written by a comrade in the Chemistry Teaching and Research Section of Suzhou High School who dealt with magnesium salt impurities contained in salt water with NaOH solution and then passed through NH3 and CO2. Comrade Xue Youxin et al. Pointed out the shortcomings of this approach. Xue comrades and suggested adding (NH_4) _2CO_3 to shorten the experiment time, but I think