二氧化硫制备和性质的绿色化实验研究

Investigation into Green Chemical Experiments of the Preparation and Property for Sulfur Dioxide

依据原子利用率、环境因子和"5R"原则(包括"减量"、"循环使用"、"回收"、"再生"及"拒用")来设计二氧化硫(SO2)的制取及性质实验(包括SO2的溶解性、水溶液的酸性、还原性及其氧化性),做到实验药品的减量化、无污染,实现环境友好。此实验的改进,不仅操作简便快捷,而且现象明显,有助于巩固和加深学生绿色化学知识。

On the basis of atom utilization, environmental factors, and the 5R principles including the Reduciton , Reuse , Recycling , Regeneration and Rejection , the preparation and properties experiments , such as water solubility , acidity of water solution , reducibility and oxidisability of SO 2 of sulfur dioxide （ SO2 ） were designed to reduce drug usage and avoid harming environment and people.After improvement of the experiment , it was not only convenient to operate but also to observe the experimental phenomenon , which could help students consolidating and deepening the knowledge about the green chemistry.