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DOI	10.5194/acp-19-11939-2019
	Trapping of HCl and oxidised organic trace gases in growing ice at temperatures relevant to cirrus clouds
	Kippenberger M.; Schuster G.; Lelieveld J.; Crowley J.N.
发表日期	2019
ISSN	16807316
起始页码	11939
结束页码	11951
卷号	19 期号:18
英文摘要	The uptake of hydrochloric acid (HCl), ethanol (C2H5OH), 1-butanol (1-C4H9OH), formic acid HC(O)OH and trifluoroacetic (CF3C.O/OH) acid to growing ice surfaces was investigated at temperatures between 194 and 228 K. HCl displayed extensive, continuous uptake during ice growth, which was strongly dependent on the ice growth velocity, the temperature of the ice surface and the gas phase concentration of HCl. Trifluoroacetic acid was also observed to be trapped in growing ice, albeit approximately an order of magnitude less efficiently than HCl, whereas the adsorption and desorption kinetics of ethanol, 1-butanol, formic acid on ice were not measurably different to those for non-growing ice, even at very high ice growth rates. We present a parameterisation of the uptake coefficient for HCl on growing ice films (γtrap) and compare the results to an existing framework that describes the non-equilibrium trapping of trace gases on ice. The trapping of HCl in growing ice crystals in the atmosphere is assessed and compared to the gas and ice phase partitioning resulting from equilibrium surface adsorption and solubility. © Author(s) 2019.
语种	英语
scopus关键词	adsorption; air temperature; cirrus; ethanol; hydrochloric acid; ice crystal; organic acid; parameterization; partitioning; solubility; trace gas
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144135
作者单位	Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, 55128, Germany
推荐引用方式 GB/T 7714	Kippenberger M.,Schuster G.,Lelieveld J.,et al. Trapping of HCl and oxidised organic trace gases in growing ice at temperatures relevant to cirrus clouds[J],2019,19(18).
APA	Kippenberger M.,Schuster G.,Lelieveld J.,&Crowley J.N..(2019).Trapping of HCl and oxidised organic trace gases in growing ice at temperatures relevant to cirrus clouds.Atmospheric Chemistry and Physics,19(18).
MLA	Kippenberger M.,et al."Trapping of HCl and oxidised organic trace gases in growing ice at temperatures relevant to cirrus clouds".Atmospheric Chemistry and Physics 19.18(2019).