Abstract This paper used some instruments such as test tube, rubber head dropper and Y-type tube to improve the experiment of reaction between copper and concentrated or dilute nitric acid. The experiment was simple and carried out under the completely closed condition with obvious phenomena, and the tail-gas treatment was convenient and safe without any pollution.
LI Run. Improved Experiment of Reaction of Copper with Concentrated or Dilute Nitric Acid[J]. Chinese Journal of Chemical Education, 2018, 39(7): 63-65.