阳离子的焰色反应的演示实验方法很多,总的来说,有以下几种: 1.用光洁无锈的铁丝蘸取待检物于酒精灯无色火焰上灼烧。2.用喷灯代替酒精灯进行如上操作。3.用无灰滤纸浸入待检物的热饱和溶液中,取出晾干后,在酒精灯火焰上燃烧。4.用粉笔浸在酒精中,取出后点火,使酒精燃烧,同时撒上待检物粉末使之燃烧。 Cationic flame reaction demonstration of many experimental methods, in general, the following: 1. Use bright and clean stainless steel wire dipped in the object to be tested in the alcohol lamp colorless flame burning. Use the torch instead of the alcohol lamp to do the above. 3. Use the ash-free filter paper to immerse the heat-saturated solution of the test substance, remove it and dry it, and then burn on the flame of the alcohol lamp. 4. Chalk dipped in alcohol, remove the ignition, the alcohol burning, while sprinkle the powder to be tested to make it burn.