Aug 23, 2023

ICARUS Chamber Experiment: Caltech Atmospheric Chamber_20140724_Methacrylolyl peroxynitrate(MPAN)/ALPHA-PINENE/hydrogen peroxide/Methacrylic acid epoxide (MAE)_Hydroxyl radical_No Seed_Dry

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Version: 20230823-020139

Goals:
This experiment was done to photooxidize MPAN and capture NO3 with a-pinene, while observing secondary organic aerosol (SOA) formation through dry nucleation. MAE was added toward the end of the experiment to see if it enhanced SOA formation.

Summary:
Addition of MAE didn't change the particle mass. Similar to 7/22 - we observed m/z316, the pinene nitroxyhydroperoxide on CIMS, which showed that NO3 radical was liberated from the MPAN+OH reaction. This reaction produced a lot of SOA.

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

Experiment Category: Gas phase chemical reaction, Aerosol formation
Oxidant: Hydroxyl radical
Reactants: Methacrylolyl peroxynitrate(MPAN), ALPHA-PINENE, hydrogen peroxide, Methacrylic acid epoxide (MAE)
Reaction Type: Photooxidation
Relative Humidity: 4
Temperature: 15
Pressure: 750 Torr

DOI: https://doi.org/10.5065/dak8-mj80

ICARUS Experiment Details: https://icarus.ucdavis.edu/experiment/610

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Temporal Range: 2014-07-24 to 2014-07-24

Related Links: Publication - Mechanism of the hydroxyl radical oxidation of methacryloyl peroxynitrate (MPAN) and its pathway toward secondary organic aerosol formation in the atmosphere

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Support Contact

Kong, Stephanie
Caltech Atmospheric Chamber
wkong@caltech.edu

Data Curator

GDEX Curator
UCAR/NCAR - GDEX
gdex@ucar.edu

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.

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Authors: Seinfeld, John

Publisher

ICARUS Community

Suggested Citation: Seinfeld, John. (2023). ICARUS Chamber Experiment: Caltech Atmospheric Chamber_20140724_Methacrylolyl peroxynitrate(MPAN)/ALPHA-PINENE/hydrogen peroxide/Methacrylic acid epoxide (MAE)_Hydroxyl radical_No Seed_Dry. Version 20230823-020139. ICARUS Community. https://doi.org/10.5065/dak8-mj80. Accessed 17 Oct 2024.

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