论文部分内容阅读
点火不用火一、将碘片研细,混入铝粉或锌粉,拌匀,放置在小铁皿中,表演时滴入1—2滴水即可。原理:碘粉与铝粉(或锌粉)的混合物,能化合为碘化铝(或碘化锌),水起催化剂作用,反应放出的热使碘升华。二、将金属钾表面油用草纸吸净,用小刀削去氧化皮。金属钾的用量不宜过多。表演时滴上几滴水,即可着火。原理:金属钾遇水放出氢气,有热产生,氢气燃烧。三、将少量白磷溶解在CS_2中,放置在一大口瓶中备用,大口瓶中还应加入少量水,表演时将纸条沾上CS_2的白磷溶液,表演时在纸上吹气,过一会,纸就燃烧起来。
Do not fire a fire, the iodine research fine, mixed with aluminum powder or zinc, mix well, placed in a small iron dish, show drip 1-2 drops can be. Principle: The mixture of iodine powder and aluminum powder (or zinc powder) can be combined into aluminum iodide (or zinc iodide). The water acts as a catalyst and the heat released by the reaction causes the iodine to sublimate. Second, the metal potassium oil surface with straw paper net, with a knife to cut the oxide. The amount of potassium metal should not be too much. When performing a few drops of water, you can catch fire. Principle: Metal potassium release hydrogen with water, heat generated, hydrogen combustion. Third, a small amount of white phosphorus dissolved in CS_2, placed in a large bottle spare, big mouth bottle should also be added to a small amount of water, the performance will be stained with CS_2 white phosphorus solution, performing on the paper blowing, after a while The paper burns.