ICARUS Chamber Experiment: Caltech Atmospheric Chamber_20140816_2-Methyl-3-buten-1-ol/Methyl nitrite/10102-44-0/OZONE_Hydroxyl radical_No Seed_Dry

Goals: This experiment was done to react 2-Methyl-3-buten-1-ol (231 MBO) with ozone to produce the Hydroxymethylpropanal (HMPR). After oxidizing HMPR with OH in the high NO2 condition, we get the HMPR-PAN (or the peroxynitrate of HMPR). This is analogous to MPAN except it has an OH at the 1-position and no double bond, so that when OH abstracts a hydrogen from HMPR-PAN, it makes the exact same alkyl radical as OH addition to MPAN. The only difference is that the alkyl radical from OH + HMPR-PAN is not created with excess energy, compared to OH addition radicals. Thus...the thermalized radical from HMPR-PAN is not hypothesized to have enough energy to form HMML, and therefore wont form secondary organic aerosol (SOA).

Summary: The reaction did not produce any significant amounts of SOA from the OH+HMPR-PAN reaction. Therefore the hypothesis is validated, that the alkyl radical of MPAN +OH goes to HMML because it is formed with excess energy through OH addition. We showed the exact same alkyl radical with less energy will add O2 instead of decomposing to HMML.

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: 2-Methyl-3-buten-1-ol, Methyl nitrite, 10102-44-0, OZONE Reaction Type: Photooxidation Relative Humidity: 4 Temperature: 25 Pressure: 750 Torr

To Access Resource:

Questions? Email Resource Support Contact:

  • Kong, Stephanie
    wkong@caltech.edu
    Caltech Atmospheric Chamber

Temporal Range

  • Begin:  2014-08-16
    End:  2014-08-16

Keywords

Resource Type dataset
Temporal Range Begin 2014-08-16
Temporal Range End 2014-08-16
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 : Mechanism of the hydroxyl radical oxidation of methacryloyl peroxynitrate (MPAN) and its pathway toward secondary organic aerosol formation in the atmosphere
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 2023-08-23
Digital Object Identifier (DOI) https://doi.org/10.5065/cfwy-wk15
Alternate Identifier N/A
Resource Version N/A
Topic Category N/A
Progress N/A
Metadata Date 2023-08-23T02:25:46-06:00
Metadata Record Identifier edu.ucar.gdex::6e55fff5-faff-486a-aabb-ff151137b975
Metadata Language eng; USA
Suggested Citation Seinfeld, John. (2023). ICARUS Chamber Experiment: Caltech Atmospheric Chamber_20140816_2-Methyl-3-buten-1-ol/Methyl nitrite/10102-44-0/OZONE_Hydroxyl radical_No Seed_Dry. ICARUS Community. https://doi.org/10.5065/cfwy-wk15. Accessed 25 April 2024.

Harvest Source