ICARUS Chamber Experiment: Caltech Atmospheric Chamber_20130908_trans-beta IEPOX_None_Ammonium sulfate_DarkReactiveUptake_RH69_addedNaOH

Goals: This experiment was performed to assess the reactive uptake behavior of trans beta-IEPOX that was synthesized for the experiment. Different particle inorganic compositions (mainly ammonium sulfate or AS) and different particle water content were investigated. Particles are injected into the chamber as deliquesced droplets (through a wet wall denuder) and they stabilize to their equilibrium particle liquid water content depending on their hygroscopicity. Summary: Large organic aerosol (OA) growth was observed on ammonium sulfate aerosol water where the pH was increased with NaOH. The atomizer solution was adjusted to neutral pH with NaOH, but the true pH of the particle is not known (however likely higher than without the NaOH addition). 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: None Reactants: trans-beta IEPOX Reaction Type: Heterogeneous oxidation, Other aqueous/aerosol phase Relative Humidity: 69 Temperature: 22 Seed Name: Ammonium sulfate Pressure: 750 Torr

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Temporal Range

  • Begin:  2013-09-08
    End:  2013-09-08

Keywords

Resource Type dataset
Temporal Range Begin 2013-09-08
Temporal Range End 2013-09-08
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
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Spatial Resolution N/A
Related Links

Related Resource #1 : ICARUS Dataset at UC-Davis
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Resource Format ASCII
Standardized Resource Format ASCII
Asset Size 38.771 MB
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Resource Support Email datahelp@ucar.edu
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Distributor NSF NCAR Geoscience Data Exchange
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Author Seinfeld, John H.
Publisher NSF National Center for Atmospheric Research
Publication Date 2023-08-23
Digital Object Identifier (DOI) https://doi.org/10.5065/06my-nf66
Alternate Identifier d789541
Resource Version N/A
Topic Category environment
Progress completed
Metadata Date 2025-10-09T01:41:17Z
Metadata Record Identifier edu.ucar.gdex::d789541
Metadata Language eng; USA
Suggested Citation Seinfeld, John H.. (2023). ICARUS Chamber Experiment: Caltech Atmospheric Chamber_20130908_trans-beta IEPOX_None_Ammonium sulfate_DarkReactiveUptake_RH69_addedNaOH. NSF National Center for Atmospheric Research. https://doi.org/10.5065/06my-nf66. Accessed 11 October 2025.

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