Title:

ICARUS Chamber Experiment: Nguyen Group_20190910_ALPHA-PINENE/OZONE/10102-44-0/hydrogen peroxide_Nitrate radical_Ammonium sulfate


Description:

Goals:
To quantify the nitrooxy-hydroperoxide yield and the SOA yield from nighttime RO2+HO2-dominated NO3-initiated chemistry of a-pinene by adding H2O2 + ozone + NO2 to the chamber. Part of a series of varying initial reactant concentrations slightly to target different chemical pathways. This one targeted low initial NO3 by adding less O3 and NO2 relative to pinene and H2O2.

Summary:
H2O2, NO2, and O3 were injected in the chamber and allowed to equilibrate, forming NO3 (and some N2O5) and probably HO2. Ammonium sulfate seed particles were injected. Then a-pinene was injected and decayed by simultaneous reaction with ozone and NO3. Gas phase was monitored by CF3O- CIMS and particle formation by SMPS.

Organization: Nguyen Group
Lab Affiliation: UC Davis
Chamber: Tran's big bag of air

Experiment Category: Gas phase chemical reaction, Aerosol formation
Oxidant: Nitrate radical
Reactants: ALPHA-PINENE, OZONE, 10102-44-0, hydrogen peroxide
Reaction Type: Dark oxidation
Relative Humidity: 5
Temperature: 22
Seed Name: Ammonium sulfate
Pressure: 755 Torr


Metadata URL:

https://gdex.ucar.edu/dataset/id/00311df9-cf36-4092-9ae0-fc0fc74a842e.html