Inhibition of the S(IV) Autoxidation in the Atmosphere by Secondary Terpenic Compounds

摘要: To better understand the role of terpenic compounds in atmospheric chemistry influence sobrerol, a water-soluble product photochemical autoxidation or ozonolysis α -pinene, on rate S(IV) was studied. Laboratory experiments were performed under heterogeneous conditions, at constant supply with by dissolution CaSO3.1/2 H2O fine particles and air oxygen diffusion through planar gas-liquid interface. The progress autoxidation, uncatalysed catalysed Fe2(SO4)3 CoSO4, followed conductometrically. inhibiting effect sobrerol discussed terms chain reaction terminated step linear respect to sulphoxy radicals. A method proposed for quantification (2.0–3.8)108 M−1s−1 given eliminating sulphate Further consequences inhibition: shifting locus from (droplet) interface liquid bulk strong oscillations resulting activity sobrerol-derived radicals also shown.