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氨的催化氧化(制硝酸)是高中化学教学中的重要实验,同时也是一个难点实验,相关的研究成果也有报道。但通过对以往实验设计方案的分析发现,实验设计普遍存在着装置复杂、试剂用量大、副产物多、成功率低、污染严重等缺点。因此,对实验进行简约化设计是非常必要的。一、改进后的实验有以下两个优点1.实验装置简约化(1)气体混合器:小具支试管(15×150 mm)。
Ammonia catalytic oxidation (nitric acid) is an important experiment in high school chemistry teaching, but also a difficult experiment, the related research results have also been reported. However, through the analysis of the previous experimental design, it is found that there are many disadvantages in experimental design, such as complicated apparatus, large dosage of reagents, more by-products, lower success rate and serious pollution. Therefore, it is necessary to simplify the experiment. First, the improved experiment has the following two advantages 1. Experimental device simplification (1) gas mixer: small test tube (15 × 150 mm).