Acetone-h6 or -d6 + OH reaction products: evidence for heterogeneous formation of acetic acid in a simulation chamber.
Simulation chamber experiments have been carried out at room temperature to investigate the products of the acetone + OH and acetone-d6 + OH reactions using two photoreactors made of Teflon or Pyrex and coupled to GC-FTIR-FID analytical techniques. In the Pyrex chamber, the results demonstrated that the channel forming acetic acid is a minor oxidation route in the atmospheric acetone-h6 + OH reaction (yield <5%), whereas a higher yield of about 20% was obtained in the case of the acetone-d6 + OH reaction, in good agreement with previous studies. Existence of a heterogeneous way of formation of acetic acid has also been identified in the Teflon photoreactor.
Turpin
Estelle
E
Département Chimie et Environnement, Ecole des Mines de Douai, France.
Tomas
Alexandre
A
Fittschen
Christa
C
Devolder
Pascal
P
Galloo
Jean-Claude
JC
D019342:Acetic Acid / Q000737:chemistry*; D000096:Acetone / Q000737:chemistry* / Q000528:radiation effects; D005898:Glass; D017665:Hydroxyl Radical / Q000737:chemistry* / Q000528:radiation effects; D011138:Polytetrafluoroethylene / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D014466:Ultraviolet Rays
D000096:Acetone; D017665:Hydroxyl Radical; D011138:Polytetrafluoroethylene; D019342:Acetic Acid