Product Distribution Study of the Cl Initiated Atmospheric Photooxidation of Ethyl Methyl Sulfide and Diethyl Sulfide

GABRIELA OKSDATH MANSILLA

ATMOSPHERIC ENVIRONMENT

PERGAMON-ELSEVIER SCIENCE LTD

Lugar: Amsterdam; Año: 2014 vol. 85 p. 41 - 41

1352-2310

he products formed in the gas-phase reactions of Cl atoms with (CH3CH2)2S and CH3CH2SCH3 have beeninvestigated in a large volume reactor in NOx-free air at atmospheric pressure and (298 2) K using longpath ?in situ? FTIR spectroscopy for the analysis. HCl, SO2 and CH3CHO were identified as the majorproducts for both reactions. For the Cl þ CH3CH2SCH3 reaction HCHO was also identified as a majorproduct. 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 CH3CH2SCH3yields 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 study for the gas-phase Cl-initiated oxidation ofnon-CH3SCH3 alkyl sulfides. Comparison with previous results for the reaction of Cl with dimethyl sulfideis made and simple atmospheric degr