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在化学实验室和化学教学中,银镜反应一直广泛地应用于鉴别醛和酮。是否一切含有醛基的有机物在任何条件下都能成功地发生银镜反应而不含醛基的有机物都不起银镜反应呢?我们通过实验对银镜反应的应用范围、氧化剂和还原剂的浓度及溶液的碱度对银镜反应的影响进行了探讨,现将讨论情况分述于下。一、银镜反应的应用范围我们在两个试管中各加入5毫升多伦试剂,再分别加入8滴0.1M苯酚溶液和3滴98%甘油,把试管置于水浴中加热,数分钟后,都能得到与醛类有机物同样光亮的银镜。此外,具有一定还原能力
In the chemistry lab and chemistry teaching, the silver mirror reaction has been widely used to identify aldehydes and ketones. Are all organic compounds containing aldehyde groups capable of successfully undergoing silver mirror reactions under any conditions and organic materials free of aldehyde groups do not act as silver mirrors? Our scope of application for silver mirror reaction, oxidants and reducing agents The effect of the concentration and the alkalinity of the solution on the silver mirror reaction was discussed. The discussion will now be discussed below. First, the scope of the application of silver mirror reaction We add 5 ml Duolun reagent in each of the two test tubes, then add 8 drops of 0.1M phenol solution and 3 drops of 98% glycerol, put the test tube in a water bath and heat for a few minutes. All can get the same bright silver mirror as aldehyde organics. In addition, there is a certain reduction capacity