Skip to main content
Dryad logo

Relative rate kinetics aqueous sulfate radical reaction with some atmospherically relevant compounds

Citation

Nguyen, Tran (2022), Relative rate kinetics aqueous sulfate radical reaction with some atmospherically relevant compounds, Dryad, Dataset, https://doi.org/10.25338/B8V34S

Abstract

The sulfate anion radical (SO4)  is a reactive oxidant formed in the autoxidation chain of sulfur dioxide. Recently, other formation pathways to SO4 for have been reported. This work investigated the second-order rate coefficients for the aqueous oxidation of some important organic aerosol compounds by the aqueous SO4 oxidation (kSO4). 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 and 2-methylglycerate,  lactic acid and lactate, and pyruvic acid and pyruvate. The rate coefficients of unknowns are determined against that of erythritol 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). Incorporations of additional SO4 reactions into models may aid in the understanding of organosulfate formation, radical propagation, and aerosol mass sinks.

Methods

See Read Me file for detaled methods.

Usage Notes

Need Microsoft Excel (proprietary) or these open source softwares: LibreOffice, Google Sheets, MS Excel Online (free), Apache Open Office, Zoho Sheets.

Funding

National Science Foundation, Award: 2046933