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Uptake of gas-phase alkylamines by sulfuric acid
  • ISSN号:1001-6538
  • 期刊名称:Chinese Science Bulletin
  • 时间:0
  • 页码:1241-1245
  • 分类:TQ455[化学工程—农药化工] X173[环境科学与工程—环境科学]
  • 作者机构:[1]Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute ofChemistry, Chinese Academy of Sciences, Beijing 100190, China
  • 相关基金:This work was supported by the Knowledge Innovation Program (KJCX2- YW-N24 and KZCX2-YW-205) of the Chinese Academy of Sciences, the National Basic Research Program of China (2006CB403701), and the National Natural Science Foundation of China (40830101 and 40925016).
  • 相关项目:大气气溶胶和光化学二次污染物的耦合相互作用研究
中文摘要:

最近的地和试验性的研究建议了 alkylamines 的酸硷的反应可以在第二等的喷雾器形成起一个重要作用。我们调查了 ethylamine (EA ) 的异构的化学, diethylamine (DEA ) 和液体 H2SO4 (1 wt%80 wt%) 上的 triethylamine (茶) 。不可逆的反应举起为所有三 alkylamines 被观察。反应举起系数() 与酸增加的 alkylamines,为 DEA 的集中,和价值显得增加比 EA 和茶的稍微快。在不同 alkylamines 的第二等的喷雾器形成的潜在的角色简短被讨论。

英文摘要:

Recent field and experimental studies have suggested that acid-base reactions of alkylamines may play an important role in sec- ondary aerosol formation. We investigated the heterogeneous chemistry of ethylamine (EA), diethylamine (DEA) and triethyl- amine (TEA) on liquid H25O4 (1 wt%-80 wt%). Irreversible reactive uptakes were observed for all three alkylamines. The reactive uptake coefficients (γ) of alkylamines increased with the acid concentration, and the γ value for DEA appeared to increase slightly faster than that of EA and TEA. The potential roles in secondary aerosol formation of different alkylamines are briefly discussed.

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