大气光化学反应研究(Ⅰ)——二氧化硫与1-己烯的光化学反应

An Investigation on the Photochemical Reactions (Ⅰ)——The Photochemical Reactions of Sulfur Dioxide and 1-Hexene

利用GC和GC-MS法研究了SO_2与1-己烯在无氧和含氧体系中的光化学反应。观察到了气溶胶的生成,确定了部分产物——酮、醛、醇、酯、酸以及含硫有机化合物,探讨了影响光化学反应的几种因素及反应机理。

The photochemical reactions of sulfur dioxide and 1-hexene in the presence or absence of oxygen systems were studied by GC and GC-MS methods. We found the formation of aerosol and a series of products such as aldehydes, ketones, acids, esters and organic sulfur compounds which condensed on the inner-surface of silica bottle. According to the characteres of such compounds and chemical kinetic theories, we suggested the mechamisms of these photo-chemical reactions. These results are very important to the chemistry of air pollution.