ICARUS Chamber Experiment: Nguyen Group_20210212_ALPHA-PINENE / Dinitrogen pentoxide / 10102-44-0 / nitric oxide_Nitrate radical_Ammonium sulfate

Goals: To quantify gas-phase product yields and the SOA yield from nighttime NO3-initiated chemistry of a-pinene using N2O5.Summary: a-pinene, NOx, and seed aerosol were injected into the chamber and allowed to mix, followed by N2O5, which quickly dissociated to NO2 and NO3. a-pinene decayed rapidly by reaction with NO3. Additional additions of N2O5 were conducted as a-pinene was left unreacted after the first. Gas phase was monitored by CF3O- CIMS and particle formation by SMPS. After all injections, a DNPH cartridge was collected for offline HRMS analysis.Organization: Nguyen Group Lab Affiliation: UC Davis Chamber: Tran's big bag of airExperiment Category: Gas phase chemical reaction, Aerosol formation Oxidant: Nitrate radical Reactants: ALPHA-PINENE, Dinitrogen pentoxide, 10102-44-0, nitric oxide Reaction Type: Dark oxidation Relative Humidity: 5 Temperature: 22 Seed Name: Ammonium sulfate Pressure: 755 Torr