Fig. 3: Concentrations of H2SO4 and MSA (methane sulfonic acid), and the MSA/H2SO4 ratio as a function of CH3SH concentration.
From: Direct sulfuric acid formation from the gas-phase oxidation of reduced-sulfur compounds
Experiments on OH + CH3SH were carried out in the free-jet flow system at r.h. = 10% and a reaction time of 7.9 s using IPN (isopropyl nitrite) photolysis for OH radical generation. Reactant concentrations are stated in Supplementary Table 1. The error bars for H2SO4 and MSA depict the uncertainty of ∼20% based on the uncertainty in the calibration factor. Source data are provided as a Source Data file.
