FORMATION OF ATOMIC CL FROM SEA SPRAY VIA PHOTOLYSIS OF NITRYL CHLORIDE - DETERMINATION OF THE STICKING COEFFICIENT OF N2O5 ON NACL AEROSOL

The sticking coefficient of N2O5 on NaCl aerosol is determined in a smog chamber (in an inserted teflon bag) at 292 K, and the rate constant for the consecutive chemical reaction leading to formation of ClNO2 is determined at various relative humidities between 71 and 92 %. A preliminary evaluation of these first experiments indicates that the sticking coefficient increases with increasing humidity from 0.024 to 0.05 in that range, whereas the portion leading to ClNO2 decreases from 0.61 to 0.3.