截流法研究CS_2和O_3的反应  

Study on Reaction of Carbon Disulfide with Ozone Using Stop-flow Method

作　　者：朱杰[1] 潘循皙[1] 侯惠奇[1] 

机构地区：[1]复旦大学环境科学研究所,上海200433

出　　处：《上海环境科学》2003年第9期606-608,614,共4页Shanghai Environmental Sciences

摘　　要：应用截流法研究了气相CS_2和O_3的反应。研究表明,CS_2和O_3的反应为表观二级反应,在干燥氮气和干燥空气条件下得到反应速率常数k_Ⅱ分别为5.47、5.28 L/(mol·s)。水汽明显加快反应速率。Co_3<Ccs_2时,反应最终产物为CO_2、CO和COS;Co_3>Ccs_2时,反应最终产物为CO_2、COS和SO_2。并讨论了反应机理。The reaction of CS2 with O3 in gas phase has been studied by using stop-flow technique. The reaction was suggested to be a 2nd order reaction with the rate constants of kⅡ=5.47L/(mol·s) for dry NⅡ and kⅡ=5.28L/ (mol·s) for dry air. Water vapour accelerated the reaction distinctively. The products were CO2, CO and COS under the condition of CO3 <Ccs2, and CO2, COS and SO2 under the condition of CO3> Ccs2 respectively. The reaction mechanism of CS2 with O3 was also discussed.

关 键 词：截流法 CS2 O3 表观二级反应 反应机理 硫化物 氧化 化学污染物 大气污染 

分 类 号：X51[环境科学与工程—环境工程]