Title:

ICARUS Chamber Experiment: Caltech Atmospheric Chamber_20130410_trans-beta IEPOX/hydrogen peroxide_Hydroxyl radical_Ammonium sulfate


Description:

Goals:
IEPOX was introduced to hydrated ammonium sulfate at 50% RH, the chamber was cooled to to remove the  IEPOX from the gas phase (no more traces in CIMS); this increased the RH to ~80%)  then H2O2 was added and lights turned on to photolyze the IEPOX on the particles and walls.

Summary:
The organic aerosol as seen on AMS reacted nearly all away. Fragmentation products such as hydroxyacetone, glycolaldehyde, formic acid, acetic acid, and peroxyacetic acid were seen as products on CIMS

Organization: Caltech Atmospheric Chamber
Lab Affiliation: California Institute of Technology, Pasadena, CA
Chamber: Near/Far Bag 2012-2015 (Tran)

Experiment Category: Condensed-phase chemical reaction, Multiphase chemical reaction
Oxidant: Hydroxyl radical
Reactants: trans-beta IEPOX, hydrogen peroxide
Reaction Type: Photooxidation, Heterogeneous oxidation, Other aqueous/aerosol phase
Relative Humidity: 50-83
Temperature: 16-22
Seed Name: Ammonium sulfate
Pressure: 750 Torr


Metadata URL:

https://gdex.ucar.edu/dataset/id/a534e82d-0db6-41fc-9902-e227191d9aed.html