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H_2-Cl_2混和气体在强光照射下发生爆炸的实验,是为了生动形象地显示氯气的化学活泼性以及光能对化学反应速度的影响。它是难度较大的实验,其成功的关键之一是有足够强的光线照射其混和气体,使之发生光化学反应而爆鸣。理论和实验证明,电子闪光灯是一种理想的光源,它使实验更加科学严密,而且大大提高了成功率。 一、常用光源 为了产生强光,常采用燃烧镁条或镁粉、氯酸钾等配成的闪光剂,以及采用双凸透镜汇聚强烈日光等。
The experiment of explosion of H 2 -Cl 2 mixed gas under strong light irradiation is to vividly show the chemical reactivity of chlorine and the influence of light energy on the chemical reaction speed. It is a difficult experiment. One of the keys to its success is to have enough light to irradiate its mixed gas and cause photochemical reactions to occur. Theory and experiment prove that electronic flash is an ideal light source, which makes the experiment more scientific and strict, and greatly improves the success rate. First, the commonly used light source In order to produce a strong light, often using the burning of magnesium or magnesium powder, potassium chlorate, such as the composition of the flash agent, as well as the use of lenticular lens convergence of strong sunlight.