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实验室制取乙炔气体,常用电石跟水反应制得。电石跟水的反应比较剧烈,产生的乙炔气流比较大,为了克服上述缺点,得到平稳的乙炔气流,可以用饱和食盐水代替水,并用分液漏斗活栓控制水流等法。笔者在此基础上,又进行了改进。其方法是:取一团脱脂棉花,浸泡饱
The laboratory produces acetylene gas, which is usually produced by reacting calcium carbide with water. The reaction of calcium carbide with water is relatively severe, and the acetylene gas flow generated is relatively large. In order to overcome the above drawbacks, a smooth acetylene gas flow can be obtained, and saturated brine can be used instead of water, and the water flow and the like can be controlled by a separating funnel live plug. Based on this, the author has also made improvements. The method is: Take a pack of skim cotton, soaked full