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在使用启普发生器演示硫化氢气体的实验室制法及其化学性质的实验时,存在以下两个缺点:1.有些硫化氢气体会从球形漏斗口逸出,有中毒的危险(虽然这个实验可以在通风橱内做,但是一般中学没有这种设备)。2.对于硫化氢需要量少的演示实验来说,启普发生器消耗试剂量过多,造成不必要的浪费。为了克服上述缺点,我们设计装配了硫化氢气体简易发生装置(附图)。这个装置有下列三个优点:1.防止了硫化氢气体从漏斗口逸出;2.试剂用量少;3.可以随用随开,随关随停。因此,适用于演示实验。
There are two disadvantages when using the Kip generator to demonstrate laboratory tests for hydrogen sulfide gas and its chemical properties: 1. Some hydrogen sulfide gas escapes from the spherical funnel, posing a risk of poisoning (although this experiment It can be done in a fume hood, but generally middle school does not have this equipment). 2. For demonstration experiments requiring less hydrogen sulfide, the Kaipu generator consumes too much reagent, causing unnecessary waste. In order to overcome the above drawbacks, we have designed and assembled an easy-to-use device for hydrogen sulfide gas (drawing). This device has the following three advantages: 1. It prevents the hydrogen sulfide gas from escaping from the funnel; 2. The amount of reagents is small; 3. Can be used with the open, with the stop. Therefore, it is suitable for demonstration experiments.