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DOI	10.5194/acp-23-311-2023
	Measurement of Henry's law and liquid-phase loss rate constants of peroxypropionic nitric anhydride (PPN) in deionized water and in n-octanol
	Easterbrook, Kevin D.; Vona, Mitchell A.; Nayebi-Astaneh, Kiana; Miller, Amanda M.; Osthoff, Hans D.
发表日期	2023
ISSN	1680-7316
EISSN	1680-7324
起始页码	311
结束页码	322
卷号	23 期号:1 页码:12
英文摘要	The Henry's law solubility (H-S) and liquid-phase loss rate constants (k(l)) of the tropospheric trace gas constituents peroxyacetic nitric anhydride (PAN; CH3C(O)O2NO2, commonly known as peroxyacetyl ni-trate) and peroxypropionic nitric anhydride (PPN; C2H5C(O)O2NO2, also known as peroxypropionyl nitrate) in deionized (DI) water and of PPN in n-octanol were measured using a flow bubble apparatus at temper-atures between 5.0 and 25.0 degrees C. For PAN in DI water, the observed values for H-S,(aq) are consistent with the literature, whereas the solubility of PPN in DI water is slightly lower than literature values, ranging from H-S (cp) (PPN)(aq)=(1.49 +/- 0.05)Matm(-1) at 25.0 degrees C to H-S(cp)(PPN)(aq)=(7.01 +/- 0.25) Matm(-1) at 5.0 degrees C (stated uncertainties are at the 1 sigma level). The data are best described by ln(H-S(cp)(PAN)(aq)/[Matm-1]) = -(17.8 +/- 0.3) + (5620 +/- 85)/ T and ln(H-S(cp) (PPN)aq/[M atm-1]) = -(19.5 +/- 1.7) + (5955 +/- 480)/ T, where T is in kelvin. For n-octanol, the PPN solubility ranges from H-S(cp)(PPN)(oct) = (88 +/- 5) M atm(-1) at 25.0 degrees C to H-S(cp) oct = (204 +/- 16) Matm(-1) at 5.0 degrees C and is best described by ln(H-S(cp) (PPN)(oct)/[Matm(-1)]) = -(6.92 +/- 0.75) + (3390 +/- 320)/ T . n-Octanol-water partition coefficients (KOW) for PPN were determined for the first time, ranging from 59 +/- 4 at 25.0 degrees C to 29 +/- 3 at 5.0 degrees C. Observed loss rate constants in DI water are consistent with recent literature and larger than the thermal dissociation rates for both PAN and PPN, consistent with a hydrolysis mechanism, whereas kl values in n-octanol are significantly smaller than gas-phase dissociation rate constants, likely owing to a cage effect in the organic liquid. The results imply that uptake of either PAN or PPN on cloud water and organic aerosol is negligible but that uptake of PPN may constitute an overlooked source of peroxy radicals in organic aerosol.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000922318400001
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/273004
作者单位	University of Calgary
推荐引用方式 GB/T 7714	Easterbrook, Kevin D.,Vona, Mitchell A.,Nayebi-Astaneh, Kiana,et al. Measurement of Henry's law and liquid-phase loss rate constants of peroxypropionic nitric anhydride (PPN) in deionized water and in n-octanol[J],2023,23(1):12.
APA	Easterbrook, Kevin D.,Vona, Mitchell A.,Nayebi-Astaneh, Kiana,Miller, Amanda M.,&Osthoff, Hans D..(2023).Measurement of Henry's law and liquid-phase loss rate constants of peroxypropionic nitric anhydride (PPN) in deionized water and in n-octanol.ATMOSPHERIC CHEMISTRY AND PHYSICS,23(1),12.
MLA	Easterbrook, Kevin D.,et al."Measurement of Henry's law and liquid-phase loss rate constants of peroxypropionic nitric anhydride (PPN) in deionized water and in n-octanol".ATMOSPHERIC CHEMISTRY AND PHYSICS 23.1(2023):12.