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操作方法: 先在锥形瓶中装入1/2—1/3瓶滴有酚酞的水,<做氯化氢实验时则装入石蕊溶液>,再用干燥的圆底烧瓶收集一瓶氨气<或氯化氢气体>,将带尖嘴玻管的胶塞塞紧后,倒立于锥形瓶上,按上图装置好,用嘴向弯曲玻管中吹气,将少量的液体从锥形瓶压入圆底烧瓶,使烧瓶里的气体很快溶于水中,由于烧瓶内气体压强减小,于是锥形瓶里的液体很快顺着尖嘴玻管喷入圆底烧瓶,形成喷泉。
Operation method: First fill 1/2-1/3 bottles of phenolphthalein water in Erlenmeyer flask, then put it into litmus solution when doing hydrogen chloride test, then use a dry round bottom flask to collect a bottle of ammonia gas. , plug the rubber plug with a sharp-edged glass tube, and invert it on an Erlenmeyer flask. According to the figure above, use a nozzle to blow the gas into the curved glass tube, and put a small amount of liquid from the Erlenmeyer flask. Press into the round bottom flask so that the gas in the flask quickly dissolves in the water. Since the gas pressure in the flask is reduced, the liquid in the Erlenmeyer flask quickly flows into the round bottom flask along the tip glass tube to form a fountain.