World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Acid-yield Measurements of the Gas-phase Ozonolysis of Ethene as a Function of Humidity Using Chemical Ionisation Mass Spectrometry (Cims) : Volume 11, Issue 9 (09/09/2011)

By Leather, K. E.

Click here to view

Book Id: WPLBN0003995604
Format Type: PDF Article :
File Size: Pages 32
Reproduction Date: 2015

Title: Acid-yield Measurements of the Gas-phase Ozonolysis of Ethene as a Function of Humidity Using Chemical Ionisation Mass Spectrometry (Cims) : Volume 11, Issue 9 (09/09/2011)  
Author: Leather, K. E.
Volume: Vol. 11, Issue 9
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2011
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Archibald, A. T., Utembe, S. R., Percival, C. J., Cooke, M. C., Leather, K. E., Mcgillen, M. R.,...Shallcross, D. E. (2011). Acid-yield Measurements of the Gas-phase Ozonolysis of Ethene as a Function of Humidity Using Chemical Ionisation Mass Spectrometry (Cims) : Volume 11, Issue 9 (09/09/2011). Retrieved from http://www.ebooklibrary.org/


Description
Description: The Centre for Atmospheric Science, The School of Earth, Atmospheric and Environmental Science, The University of Manchester, Simon Building, Brunswick Street, Manchester, M13 9PL, UK. Gas-phase ethene ozonolysis experiments were conducted at room temperature to determine formic acid yields as a function of relative humidity (RH) using the integrated EXTreme RAnge chamber-Chemical Ionisation Mass Spectrometry technique, employing a CH3I ionisation scheme. RHs studied were <1, 11, 21, 27, 30 % and formic acid yields of (0.07 ± 0.01) and (0.41 ± 0.07) were determined at <1 % RH and 30 % RH respectively, showing a strong water dependence. It has been possible to estimate the ratio of the rate coefficient for the reaction of the Criegee biradical, CH2OO with water compared with decomposition. This analysis suggests that the rate of reaction with water ranges between 1 × 10−12–1 × 10−15 cm3 molecule−1 s−1 and will therefore dominate its loss with respect to bimolecular processes in the atmosphere. Global model integrations suggest that this reaction between CH2OO with water may dominate the production of HC(O)OH in the atmosphere.

Summary
Acid-yield measurements of the gas-phase ozonolysis of ethene as a function of humidity using Chemical Ionisation Mass Spectrometry (CIMS)

Excerpt
Andreae, M. O. and Merlet, P.: Emission of trace gases and aerosols from biomass burning, Glob. Biogeochem. Cy., 15, 955–966, 2001.; Anglada, J. M., Aplincourt, P., Bofill, J. M., and Cremer, D.: Atmospheric formation of OH radicals and H2O2 from alkene ozonolysis under humid conditions, Chem. Phys. Chem., 3, 215–221, 2002.; Archibald, A. T., Cooke, M. C., Utembe, S. R., Shallcross, D. E., Derwent, R. G., and Jenkin, M. E.: Impacts of mechanistic changes on HOx formation and recycling in the oxidation of isoprene, Atmos. Chem. Phys., 10, 8097–8118, <a href=http://dx.doi.org/10.5194/acp-10-8097-2010>doi:10.5194/acp-10-8097-2010, 2010.; Arlander, D. W., Cronn, D. R., Farmer, J. C., Menzia, F. A., and Westberg, H. H.: Gaseous Oxygenated Hydrocarbons in the Remote Marine Troposphere, J. Geophys. Res.-Atmos., 95, 16391–16403, 1990.; Hatakeyama, S. and Akimoto, H.: Reactions of Criegee Intermediates in the Gas-Phase, Res. Chem. Intermed., 20, 503–524, 1994.; Aschmann, S. M., Arey, J., and Atkinson, R.: OH radical formation from the gas-phase reactions of O3 with methacrolein and methyl vinyl ketone, Atmos. Environ., 30, 2939–2943, <a href=http://dx.doi.org/10.1016/1352-2310(96)00013-1>doi:10.1016/1352-2310(96)00013-1, 1996.; Atkinson, R., Baulch, D. L., Cox, R. A., Crowley, J. N., Hampson, R. F., Hynes, R. G., Jenkin, M. E., Rossi, M. J., Troe, J., and IUPAC Subcommittee: Evaluated kinetic and photochemical data for atmospheric chemistry: Volume II �- gas phase reactions of organic species, Atmos. Chem. Phys., 6, 3625–4055, <a href=http://dx.doi.org/10.5194/acp-6-3625-2006>doi:10.5194/acp-6-3625-2006, 2006.; Broadgate, W. J., Liss, P. S., and Penkett, S. A.: Seasonal emissions of isoprene and other reactive hydrocarbon gases from the ocean, Geophys. Res. Lett., 24, 2675–2678, 1997.; Calvert, J. G., Su, F., Bottenheim, J. W., and Strausz, O. P.: Mechanism of Homogeneous Oxidation of Sulfur-Dioxide in Troposphere, Atmos. Environ., 12, 197–226, 1978.; Calvert, J. G., Atkinson, R., Kerr, J. A., Madronich, S., Moortgat, G. K., Wallington, T. J., and Yarwood, G.: The Mechanism of Atmospheric Oxidation of the Alkenes, Oxford University Press, New York, 2000.; Chebbi, A. and Carlier, P.: Carboxylic acids in the troposphere, occurrence, sources, and sinks: A review, Atmos. Environ., 30, 4233–4249, 1996.; Collins, W. J., Stevenson, D. S., Johnson, C. E., and Derwent, R. G.: Tropospheric ozone in a global-scale three-dimensional Lagrangian model and its response to NOx emission controls, J. Atmos. Chem., 26, 223–274, 1997.; Crehuet, R., Anglada, J. M., and Bofill, J. M.: Tropospheric formation of hydroxymethyl hydroperoxide, formic acid, H2O2, and OH from carbonyl oxide in the presence of water vapor: A theoretical study of the reaction mechanism, Chem.-Eur. J., 7, 2227–2235, 2001.; Derwent, D., Jenkin, M., Passant, N., and Pilling, M.: Up in the air, Chem. Ind., 10, 18–19, 2008.; Cremer, D., Kraka, E., and Szalay, P. G.: Decomposition modes of dioxirane, methyldioxirane and dimethyldioxirane – a CCSD(T), MR-AQCC and DFT investigation, Chem. Phys. Lett., 292, 97–109, 1998.; Granier, C., Guenther, A., Lamarque, J. F., Mieville, A., Muller, J. F., Olivier, J., Orlando, J., Peters, J., Petron, G., Tyndall, G., Wallens, S.: POET, a database of surface emissions of ozone precursors. Available from: <a href=http://www.aero.jussieu.fr/projet/ACCENT/POET.php>http://www.aero.jussieu.fr/projet/ACCENT/POET.php, last access: September, 2011, 2005.; Grosjean, D., Williams, E. L., and Grosjean, E.: Atmospheric chemistry of isoprene and of its carbonyl products, Environ. Sci. Technol., 27, 830–840, <a href=http://dx.doi.org/10.1021/es00042a004>doi:10.1021/es00042a004, 1993.; Henze, D. K., Seinfeld, J. H., Ng, N. L., Kroll, J. H., Fu, T.-M., Jacob, D. J., and Heald, C. L.: Global modeling of secondary organic aerosol formation from aromatic hydrocarbons: high- vs. low-yield pathw


 

Click To View

Additional Books


  • Characterization of Volatile Organic Com... (by )
  • The Contribution of Boundary Layer Nucle... (by )
  • Mesospheric N2O Enhancements as Observed... (by )
  • Mixing State of Individual Submicron Car... (by )
  • The Effect of Climate Change and Emissio... (by )
  • Carbontracker-ch4: an Assimilation Syste... (by )
  • The Potential of Polarization Measuremen... (by )
  • On the Emissions and Transport of Bromof... (by )
  • Corrigendum to Thermodynamics of Reactio... (by )
  • Organic Aerosol Components Derived from ... (by )
  • An Approach to Retrieve Information on t... (by )
  • 27-day Variation in Cloud Amount and Rel... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.