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

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

To Access Resource:

Questions? Email Resource Support Contact:

  • Kong, Stephanie
    Caltech Atmospheric Chamber

Temporal Range

  • Begin:  2013-04-10
    End:  2013-04-10


Resource Type dataset
Temporal Range Begin 2013-04-10
Temporal Range End 2013-04-10
Temporal Resolution N/A
Bounding Box North Lat N/A
Bounding Box South Lat N/A
Bounding Box West Long N/A
Bounding Box East Long N/A
Spatial Representation N/A
Spatial Resolution N/A
Related Links

Publication : Organic aerosol formation from the reactive uptake of isoprene epoxydiols (IEPOX) onto non-acidified inorganic seeds

Additional Information N/A
Resource Format Compressed Archive File (application/zip)
Standardized Resource Format Archive
Asset Size N/A
Legal Constraints

Creative Commons Attribution 4.0 International License.

Access Constraints These data are openly accessible by all registered users. Accounts are available free of charge following the registration of user information with a valid email address.
Software Implementation Language N/A

Resource Support Name Kong, Stephanie
Resource Support Email wkong@caltech.edu
Resource Support Organization Caltech Atmospheric Chamber
Distributor N/A
Metadata Contact Name GDEX Curator
Metadata Contact Email gdex@ucar.edu
Metadata Contact Organization UCAR/NCAR - GDEX

Author Seinfeld, John
Publisher ICARUS Community
Publication Date 2022-11-27
Digital Object Identifier (DOI) https://doi.org/10.5065/sawa-km16
Alternate Identifier N/A
Resource Version N/A
Topic Category N/A
Progress N/A
Metadata Date 2023-05-28T00:21:45-06:00
Metadata Record Identifier edu.ucar.gdex::a534e82d-0db6-41fc-9902-e227191d9aed
Metadata Language eng; USA
Suggested Citation Seinfeld, John. (2022). ICARUS Chamber Experiment: Caltech Atmospheric Chamber_20130410_trans-beta IEPOX/hydrogen peroxide_Hydroxyl radical_Ammonium sulfate. ICARUS Community. https://doi.org/10.5065/sawa-km16. Accessed 28 May 2023.

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