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此装置适用于高中化学教学中,测浓度,温度影响化学反应速度实验的。特点:便于操作、有利于学生观察,现象鲜明,效果准确。操作方法(参见装置图): 测浓度对反应速度影响的实验时,先将分液漏斗的开关闭上,然后向漏斗里注入0.1mol·L~(-1)的硫酸溶液50ml,再向两支试管里分别注入0.1mol·L~(-1)0.2mol·L~(-1)的硫代硫酸钠溶液10ml,将两支试管口分别对准Y形管的两支尖咀上。演示反应时,将分液漏斗开关打开,硫酸溶液便分别同时流入两支试管中,约流入10ml硫酸溶液时,关闭开关,
This device is suitable for high school chemistry teaching, measuring concentration, temperature influence chemical reaction speed experiment. Features: easy to operate, conducive to student observation, phenomenal, accurate results. Operation method (see device diagram): When testing the effect of concentration on the reaction speed, close the separatory funnel first, and then inject 0.1 mol·L -1 sulfuric acid solution into the funnel. In the test tube, inject 10ml sodium thiosulfate solution of 0.1mol·L -1 0.2mol·L -1 , respectively, and align the two test tubes with the two tips of the Y tube. During the demonstration reaction, the separatory funnel switch was turned on, and the sulfuric acid solution flowed into two test tubes at the same time. When about 10 ml of sulfuric acid solution flowed in, the switch was turned off.