ICARUS Chamber Experiment: Hildebrandt Ruiz Lab_20171116_octane/nitric oxide_Chlorine radical_Ammonium sulfate_dry

Goals: Find SOA yield for octane + Cl under high NOx condition (NO injected). Investigate volatility behavior based on 2D thermograms.Summary: Ammonium sulfate seed (0.01M, 150 mL) was injected using an aerosol generation system. Cl2 gas and NO gas were injected from their cylinders. 1 uL of octane was injected into a glass bulb and heated clean air was made to flow over it, carrying the volatilized octane into the chamber. After ~30 minutes (sufficient mixing time), lights were turned on for 1 hour (12:27:50-13:27:50). At 13:35, a FIGAERO collection began for 45 minutes, followed by a desorption. A second FIGAERO collection began at 3:44 PM.Organization: Hildebrandt Ruiz Lab Lab Affiliation: University of Texas at Austin, Austin, TX, USA Chamber: LHR ChamberExperiment Category: Gas phase chemical reaction, Volatility and partitioning, Aerosol formation Oxidant: Chlorine radical Reactants: octane, nitric oxide Reaction Type: Photooxidation Temperature: 25 Seed Name: Ammonium sulfate