《高中化学》第一册（必修）实验八，稀硝酸跟钢作用实验。按书中的装置，不仅操作复杂，浪费药品，反应不易控制，且产生一氧化氮污染空气。本人将该实验改成了微型装置实验。实践证明改进后的装置，节约药品，污染小，易操作，现象明显有趣。1微型实验器的制作1．用长约25cm “High School Chemistry” Volume I (required) Experiment 8, dilute nitric acid and steel experiment. According to the device in the book, not only the operation is complicated, the medicine is wasted, the reaction is not easy to control, and nitrous oxide polluted air is generated. I changed this experiment to a micro device experiment. Practice has proved that the improved device saves drugs, has little pollution, and is easy to operate. The phenomenon is obviously interesting. 1 Production of Micro Experimenter Use about 25cm