Fig. 3: Concentration time profile of CH₂OO in ethene ozonolysis at different flow rates (residence times) under different reaction conditions at 10 Torr and 293 K.

(solid symbols: experimental data; open symbols: kinetic simulation; black squares: initial ethene concentration [C₂H₄] = 1 × 10¹⁷cm⁻³ and initial ozone concentration [O₃] = 1.8 × 10¹⁵cm⁻³; red circles: [C₂H₄] = 5 × 10¹⁶cm⁻³ and [O₃] = 1.8 × 10¹⁵cm⁻³; blue triangles: [C₂H₄] = 1 × 10¹⁷cm⁻³ and [O₃] = 9 × 10¹⁴cm⁻³). The dashed lines connect the kinetic simulation open symbols under the different reaction conditions. The concentration of CH₂OO at 174 ms with [C₂H₄] = 1 × 10¹⁷cm⁻³ and [O₃] = 1.8 × 10¹⁵cm⁻³ was measured three times for the 1σ error bar, while spectra baseline fluctuations were used to estimate the error bars of other data points. Source data are provided as a Source Data file.