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58问答库 > 2,4-二硝基苯肼能不能用来鉴定甲酸

2,4-二硝基苯肼能不能用来鉴定甲酸

2025-04-07 09:57:06

推荐回答（1个）

回答（1）：

2,4-二硝基苯肼主要用来鉴定：“醛”类化合物。鉴定甲酸可以考虑先用PH试纸来确定他是酸不是醛，然后利用其还原性做“银镜反应”，把银氨络离子中的银离子还原成金属银，而自己被氧化成二氧化碳和水。

HCOOH+2AgOH→2Ag+2H2O+CO2

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