Heterogeneous Reaction of Dimethyl Sulfide with Iodine Oxide in a Temperature Range of 291–365 K
| Autor: | Igor Larin, A. I. Spassky, E. M. Trofimova, T. I. Belyakova, N. A. Messineva |
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| Rok vydání: | 2021 |
| Předmět: |
010405 organic chemistry
Analytical chemistry chemistry.chemical_element Iodine oxide General Chemistry Atmospheric temperature range 010402 general chemistry Iodine 01 natural sciences Catalysis 0104 chemical sciences Computer Science Applications chemistry.chemical_compound Reaction rate constant chemistry Resonance fluorescence Modeling and Simulation Dimethyl sulfide Order of magnitude |
| Zdroj: | Kinetics and Catalysis. 62:245-254 |
| ISSN: | 1608-3210 0023-1584 |
| Popis: | A reaction of the iodine oxide (IO) radical with dimethyl sulfide (DMS) in a temperature range of 291–365 K was studied using atomic iodine resonance fluorescence. It was found that this reaction was mainly heterogeneous under the experimental conditions, and the rate constant of the heterogeneous reaction was almost an order of magnitude higher than the rate constant of a homogeneous reaction. The temperature dependence of the rate constant of this reaction can be represented by the following expression: k(T) = 1.5 × 10–14 [±3 × 10–15 cm3 molecule–1 s–1] exp(7150[±800 J/mol]/RT). The conditions under which the heterogeneous reaction of DMS with the IO radical can play a noticeable role in the oxidation of DMS in the atmosphere are discussed. |
| Databáze: | OpenAIRE |
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