Presentation device of reaction of water or chlorine and precious metal

The utility model relates to a presentation device of a reaction of water or chlorine and precious metal, wherein the presentation device consists of an iron stand, a spring frame, a file frame and a hand protection file with a protection handle, wherein the spring frame is especially used for fixing a precious metal block; the hand protection file can cross up and down in the file frame, and can file the precious metal; and the spring frame and the file frame both can move up and down freely on a vertical rod of the iron stand, both can be fixed on the vertical rod of the iron stand according to the size and height of a water-filling beaker or a chlorine-filling beaker, and also can rotate around the vertical rod of the iron stand for 360 degrees. The presentation defect of the reaction of the existing water or chlorine and the precious metal is overcome; precious metal is saved; the presentation device is simple in structure, is safe, simple and convenient; the process is controllable; the preparation time