## Abstract The absolute rate constant for the reaction of methyl radicals with ozone has been measured as a function of temperature. Small concentrations of CH~3~ were generated by flash photolyzing CH~3~NO~2~ at 193 nm with an ArF laser. A photoionization mass spectrometer was used to follow the
The reactions of ozone with methyl and ethyl nitrites
β Scribed by D. R. Hastie; C. G. Freeman; M. J. McEwan; H. I. Schiff
- Publisher
- John Wiley and Sons
- Year
- 1976
- Tongue
- English
- Weight
- 263 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0538-8066
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β¦ Synopsis
Abstract
The reactions of O~3~ with CH~3~ONO and C~2~H~5~ONO were studied using infrared absorption spectroscopy in a static reactor at temperatures between 298 and 352K. Both reactions followed simple secondβorder kinetics forming the corresponding nitrate:
equation image
The rate coefficients are given by
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π SIMILAR VOLUMES
Reaction rate coefficients of methyl and ethyl nitrates with OH radicals were determined by the relative rate method in 1 atmosphere of oxygen. Reactions were initiated by the photochemical formation of OH radicals utilizing the reaction: was obtained through a stationary photolysis of excess ozone
Arrhenius parameters have been determined for the hydrogen-abstraction reactions: R + SiHCI, + RH + SiCl, CF, 323-46 1 5.98 & 0.06 11.77 f 0.03 8.50 CH, 333-443 4.30 f 0.08 10.83 & 0.04 8.48 C,H, 314-413 5.32 & 0.07 11.54 f 0.04 8.63 7 - l h e trend in activation energies ECH, < E c ~H , < ECF, is