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铜与浓、稀硝酸的反应,实验时生成大量有毒气体逸散到空气中,造成了严重的环境污染,且铜与稀硝酸的反应所生成的NO易氧化为NO2,无法证明为NO气体。本篇对此进行了研究,提出了优化后的实验方案,其现象明显,便于操作,便于控制,没有污染,体现了绿色化学的思想。
Copper and concentrated, dilute nitric acid reaction, the experiment generated a large number of toxic gases escape into the air, causing serious environmental pollution, and the reaction of copper and dilute nitric acid generated nitric oxide NO2 easily oxidized, can not be proved as NO gas. This article has carried on the research, put forward the optimized experimental plan, its phenomenon is obvious, easy to operate, easy to control, does not have the pollution, embodied the green chemistry thought.