Aug 23, 2023

ICARUS Chamber Experiment: Caltech Atmospheric Chamber_20140802_Methacrylolyl peroxynitrate(MPAN)/ALPHA-PINENE/hydrogen peroxide/Methacrylic acid epoxide (MAE)_Hydroxyl radical_No Seed_Dry

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Version: 20230823-020142

Goals:
This experiment is a repeat of 140724 experiment but this time with the NO2PAN monitor to quantify NO, PAN, and MPAN. The goal of this experiment is 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:
Observations are the same as for 140724 - large SOA formation, alpha pinene was observed to capture NO3 which indicated that NO3 is product of MPAN oxidation, and MAE does not increase or otherwise alter SOA formation

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/10.5065/5ax6-q953

ICARUS Experiment Details: https://icarus.ucdavis.edu/experiment/612

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Temporal Range: 2014-08-02 to 2014-08-02

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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GCMD Instruments

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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_20140802_Methacrylolyl peroxynitrate(MPAN)/ALPHA-PINENE/hydrogen peroxide/Methacrylic acid epoxide (MAE)_Hydroxyl radical_No Seed_Dry. Version 20230823-020142. ICARUS Community. https://doi.org/10.5065/5ax6-q953. Accessed 08 Jan 2025.

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