对几种临界温度在常温以上的气体,我采用了下列的方法,进行液化实验,结果相当满意,今特介绍如下。 (一)二氧化硫的液化二氧化硫为最易液化的气体之一,温度在-10℃时施以1大气压即能液化,但要在普通的实验室得到-10℃的温度是很困难的;但在常温时用4气压左右即可使其液化。 For several kinds of gases whose critical temperature is above normal temperature, I used the following method to conduct liquefaction experiment, and the results are quite satisfactory. Now I introduce the following. (I) Liquefaction of sulfur dioxide Sulfur dioxide is one of the most liquefiable gases and can be liquefied by applying 1 atm when the temperature is -10 ° C. However, it is very difficult to obtain a temperature of -10 ° C in a common laboratory. However, in the case of Ambient temperature with 4 or so pressure can make it liquefied.