Figure 8. Reaction 10 CH3C(O)O2 + CH3O2
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Table 9. Reaction 10 CH3C(O)O2 + CH3O2
| Reference | Branching ratio for channel (10a) at 298 K used in analyses | k298a | Aa | E/R (K) | Temp range(K) | Method |
|---|---|---|---|---|---|---|
| Addison et al. (1980) | 0.3 | 298 | MMS-UV | |||
| Moortgat et al. (1989) | 0.47 | 1.4 (1.3)b |
≈0 | 253-373 | FP-UV | |
| Roehl et al. (1996) | 0.9 | 0.98 | 298 | LP-UV | ||
| Maricq and Szente (1996) | ≈0 | 0.97 | 0.085 | -726 | 209-358 | LP-UV/IR |
| Villenave and Lesclaux (1996) | 0.47 | 0.82 | 298 | FP-UV | ||
| Recommended | 0.9 | 1.1 (1.5)c | 0.2 | -500±250d |
a) units of 10-11 cm3molecule-1s-1; b) Reanalyzed using the cross section values recommended in the present evaluation; c) Uncertainty factor; d) Due to large uncertainties on both branching ratios and kinetics, a temperature dependence cannot be recommended at the present time (see text); an exponential factor of the Arrhenius expression close to that observed for the CH3C(O)O2 self reaction is suggested.