ICARUS Chamber Experiment: Jimenez Lab_20181121_Toluene/Methyl nitrite/Nitric oxide_Hydroxyl radical_Ammonium sulfate

Goals: Determine the average and individual gas-particle accommodation coefficients of reaction products formed from toluene photooxidation and contributing to SOA formation.Summary: Toluene, Methyl nitrite, NO, and particle seed added to chamber, UV lights turned on for 10-20 seconds, multifunctional products formed and some condensed to aerosol. The 10-20s UV light/photochemistry bursts were repeated 7 times. SMPS measurements of particle size distributions were conducted to determine particle formation, surface area and condensational sink rate coefficients. In this experiment reported, Aerosol-phase chemical species were measured with HR-AMS.Organization: Jimenez Lab Lab Affiliation: University of Colorado, Boulder Chamber: 1-White (1W)Experiment Category: Volatility and partitioning Oxidant: Hydroxyl radical Reactants: Toluene, Methyl nitrite, Nitric oxide Reaction Type: Photooxidation Temperature: 25 Seed Name: Ammonium sulfate Pressure: 830 mbar