Aug 23, 2023

ICARUS Chamber Experiment: Nguyen Group_20190923_ALPHA-PINENE/OZONE/10102-44-0/hydrogen peroxide_Nitrate radical_Ammonium sulfate

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Version: 20230823-020055

Goals:
To quantify the nitrooxy-hydroperoxide yield and the SOA yield from nighttime RO2+HO2-dominated NO3-initiated chemistry of a-pinene by adding H2O2 + ozone + NO2 to the chamber. Part of a series of varying initial reactant concentrations slightly to target different chemical pathways. This one targeted high initial RO2 by adding more pinene than others.

Summary:
H2O2, NO2, and O3 were injected in the chamber and allowed to equilibrate, forming NO3 (and some N2O5) and probably HO2. Ammonium sulfate seed particles were injected. Then a-pinene was injected and decayed by simultaneous reaction with ozone and NO3. Gas phase was monitored by CF3O- CIMS and particle formation by SMPS.

Organization: Nguyen Group
Lab Affiliation: UC Davis
Chamber: Tran's big bag of air

Experiment Category: Gas phase chemical reaction, Aerosol formation
Oxidant: Nitrate radical
Reactants: ALPHA-PINENE, OZONE, 10102-44-0, hydrogen peroxide
Reaction Type: Dark oxidation
Relative Humidity: 5
Temperature: 22
Seed Name: Ammonium sulfate
Pressure: 755 Torr

DOI: https://doi.org/10.5065/4rer-a448

ICARUS Experiment Details: https://icarus.ucdavis.edu/experiment/580

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Temporal Range: 2019-09-23 to 2019-09-23

Related Links: N/A

GCMD Science Keywords

GCMD Instruments

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Support Contact

Bates, Kelvin
Nguyen Group
kelvinhbates@gmail.com

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: Nguyen, Tran

Publisher

ICARUS Community

Suggested Citation: Nguyen, Tran. (2023). ICARUS Chamber Experiment: Nguyen Group_20190923_ALPHA-PINENE/OZONE/10102-44-0/hydrogen peroxide_Nitrate radical_Ammonium sulfate. Version 20230823-020055. ICARUS Community. https://doi.org/10.5065/4rer-a448. Accessed 27 Jan 2025.

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