INFIQC 05475
INSTITUTO DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Unidad Ejecutora - UE
artículos
Título:
Product distribution study of the Cl-atom initiated oxidation of ethyl methyl sulfide and diethyl sulfide
Autor/es:
GABRIELA OKSDATH MANSILLA; ALICIA B. PEÑÉÑORY; BARNES, IAN; PETER WIESEN; TERUEL, MARIANO A.
Revista:
ATMOSPHERIC ENVIRONMENT
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Lugar: Amsterdam; Año: 2014
ISSN:
1352-2310
Resumen:
The products formed in the gas-phase reactions of Cl atoms with (CH3CH2)2S and CH3CH2SCH3 have been investigated in a large volume reactor in NOx-free air at atmospheric pressure and (298 ± 2) K using long path ?in situ? FTIR spectroscopy for the analysis. HCl, SO2 and CH3CHO were identified as the major products for both reactions. For the Cl + CH3CH2SCH3 reaction HCHO was also identified as a major product. The yields of the products obtained for the reaction of Cl with (CH3CH2)2S were (59±2) %, (52±5) % and (103±4) % for HCl, SO2 and CH3CHO, respectively. For the reaction of Cl with CH3CH2SCH3 yields of (43±5) %, (55±3) %, (58±3) % and (53±5) % were obtained for HCl, SO2, CH3CHO and HCHO, respectively. This is the first products and mechanistic studies for the gas-phase Cl-initiated oxidation of non-CH3SCH3 alkyl sulfides. Comparison with previous results for the reaction of Cl with dimethyl sulfide is made and simple atmospheric degradation mechanisms are postulated to explain the formation of the observed products
