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我们对氨的催化氧化演示实验作了一些改进,具体做法如下。一、实验装置先制催化剂管,把细铂丝团挤压成细长条,放入内径1.5—2 mm,长15—20cm的薄壁玻璃管内。其粗细要紧密的与玻璃管内径配合。用酒精灯加热铂金丝团部分,约一分钟后用打气球鼓入空气,空气带走氨气从支管出去,经过铂丝,铂丝马上发红,迅速移去酒精
We have made some improvements to the demonstration experiment of catalytic oxidation of ammonia. The specific methods are as follows. First, the experimental device to make the catalyst tube, the fine platinum wire extrusion into a slender strip, placed inside diameter 1.5-2 mm, long 15-20 cm thin-walled glass tube. Its thickness should closely match the inner diameter of the glass tube. Heat the platinum cluster with an alcohol lamp. After about one minute, use a balloon to blow in the air. The air takes away the ammonia gas from the branch tube. After the platinum wire, the platinum wire immediately turns red and the alcohol is rapidly removed.