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Second-Order Kinetic Rate Coefficients for the Aqueous-Phase Sulfate Radical (SO(4)(•–)) Oxidation of Some Atmospherically Relevant Organic Compounds
[Image: see text] The sulfate anion radical (SO(4)(•–)) is a reactive oxidant formed in the autoxidation chain of sulfur dioxide, among other sources. Recently, new formation pathways toward SO(4)(•–) and other reactive sulfur species have been reported. This work investigated the second-order rate...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9511566/ https://www.ncbi.nlm.nih.gov/pubmed/36069746 http://dx.doi.org/10.1021/acs.jpca.2c04964 |
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author | Tran, Lillian N. Abellar, Karizza A. Cope, James D. Nguyen, Tran B. |
author_facet | Tran, Lillian N. Abellar, Karizza A. Cope, James D. Nguyen, Tran B. |
author_sort | Tran, Lillian N. |
collection | PubMed |
description | [Image: see text] The sulfate anion radical (SO(4)(•–)) is a reactive oxidant formed in the autoxidation chain of sulfur dioxide, among other sources. Recently, new formation pathways toward SO(4)(•–) and other reactive sulfur species have been reported. This work investigated the second-order rate coefficients for the aqueous SO(4)(•–) oxidation of the following important organic aerosol compounds (k(SO4)): 2-methyltetrol, 2-methyl-1,2,3-trihydroxy-4-sulfate, 2-methyl-1,2-dihydroxy-3-sulfate, 1,2-dihydroxyisoprene, 2-methyl-2,3-dihydroxy-1,4-dinitrate, 2-methyl-1,2,4-trihydroxy-3-nitrate, 2-methylglyceric acid, 2-methylglycerate, lactic acid, lactate, pyruvic acid, pyruvate. The rate coefficients of the unknowns were determined against that of a reference in pure water in a temperature range of 298–322 K. The decays of each reagent were measured with nuclear magnetic resonance (NMR) and high-performance liquid chromatography–high-resolution mass spectrometry (HPLC-HRMS). Incorporating additional SO(4)(•–) reactions into models may aid in the understanding of organosulfate formation, radical propagation, and aerosol mass sinks. |
format | Online Article Text |
id | pubmed-9511566 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-95115662022-09-27 Second-Order Kinetic Rate Coefficients for the Aqueous-Phase Sulfate Radical (SO(4)(•–)) Oxidation of Some Atmospherically Relevant Organic Compounds Tran, Lillian N. Abellar, Karizza A. Cope, James D. Nguyen, Tran B. J Phys Chem A [Image: see text] The sulfate anion radical (SO(4)(•–)) is a reactive oxidant formed in the autoxidation chain of sulfur dioxide, among other sources. Recently, new formation pathways toward SO(4)(•–) and other reactive sulfur species have been reported. This work investigated the second-order rate coefficients for the aqueous SO(4)(•–) oxidation of the following important organic aerosol compounds (k(SO4)): 2-methyltetrol, 2-methyl-1,2,3-trihydroxy-4-sulfate, 2-methyl-1,2-dihydroxy-3-sulfate, 1,2-dihydroxyisoprene, 2-methyl-2,3-dihydroxy-1,4-dinitrate, 2-methyl-1,2,4-trihydroxy-3-nitrate, 2-methylglyceric acid, 2-methylglycerate, lactic acid, lactate, pyruvic acid, pyruvate. The rate coefficients of the unknowns were determined against that of a reference in pure water in a temperature range of 298–322 K. The decays of each reagent were measured with nuclear magnetic resonance (NMR) and high-performance liquid chromatography–high-resolution mass spectrometry (HPLC-HRMS). Incorporating additional SO(4)(•–) reactions into models may aid in the understanding of organosulfate formation, radical propagation, and aerosol mass sinks. American Chemical Society 2022-09-07 2022-09-22 /pmc/articles/PMC9511566/ /pubmed/36069746 http://dx.doi.org/10.1021/acs.jpca.2c04964 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Tran, Lillian N. Abellar, Karizza A. Cope, James D. Nguyen, Tran B. Second-Order Kinetic Rate Coefficients for the Aqueous-Phase Sulfate Radical (SO(4)(•–)) Oxidation of Some Atmospherically Relevant Organic Compounds |
title | Second-Order Kinetic
Rate Coefficients for the Aqueous-Phase
Sulfate Radical (SO(4)(•–)) Oxidation
of Some Atmospherically Relevant Organic Compounds |
title_full | Second-Order Kinetic
Rate Coefficients for the Aqueous-Phase
Sulfate Radical (SO(4)(•–)) Oxidation
of Some Atmospherically Relevant Organic Compounds |
title_fullStr | Second-Order Kinetic
Rate Coefficients for the Aqueous-Phase
Sulfate Radical (SO(4)(•–)) Oxidation
of Some Atmospherically Relevant Organic Compounds |
title_full_unstemmed | Second-Order Kinetic
Rate Coefficients for the Aqueous-Phase
Sulfate Radical (SO(4)(•–)) Oxidation
of Some Atmospherically Relevant Organic Compounds |
title_short | Second-Order Kinetic
Rate Coefficients for the Aqueous-Phase
Sulfate Radical (SO(4)(•–)) Oxidation
of Some Atmospherically Relevant Organic Compounds |
title_sort | second-order kinetic
rate coefficients for the aqueous-phase
sulfate radical (so(4)(•–)) oxidation
of some atmospherically relevant organic compounds |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9511566/ https://www.ncbi.nlm.nih.gov/pubmed/36069746 http://dx.doi.org/10.1021/acs.jpca.2c04964 |
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