论甲烷试验的教学改革

On Teaching of Methane

在实验室常用碱石灰法制取甲烷,由于市售碱石灰极易吸收空气中的二氧化碳使碱石灰的有效碱量下降,甲烷的产量减少,副产物多。为克服以上缺点,现采用其它方法制取甲烷,以供教学参考。

New ways to make methane in Lab avoiding some disdvantages such as the outoul reduction and by-product increasing caused by the down-cut of effective amount of soda when taking in CO2 in air.