ICARUS Chamber Experiment: Ziemann_20071129_2,6,10-Trimethyldodecane/Methyl nitrite/Nitric oxide_Hydroxyl radical_DOS

Goals:
Determine SOA yield of OH radical oxidation of the VOC

Summary:
Alkanes were reacted with OH radicals in the presence of NOx in a 5900 L PTFE environmental chamber filled with clean, dry air (<5 ppbv hydrocarbons, <1% RH) at ?25 °C and atmospheric pressure. The reaction mixture contained ?200-400 µg m-3 of dioctyl sebacate (DOS) seed particles added from an evaporation condensation aerosol generator and 1 (0.5 heptadecane), 10, and 10 ppmv alkane, methyl nitrite, and NO. Reactions were initiated by turning on blacklights to form OH radicals by methyl nitrite photolysis. The average OH radical concentration for 60 min of reaction was ?3 × 107 cm-3 , and ?50-85% of the alkane reacted.

Organization: Ziemann
Lab Affiliation: University of Colorado, Boulder, Boulder, CO, USA
Chamber: UC Riverside (APRC)

Experiment Category: Gas phase chemical reaction, Photolysis, any phase, Aerosol formation, Aerosol aging
Oxidant: Hydroxyl radical
Reactants: 2,6,10-Trimethyldodecane, Methyl nitrite, Nitric oxide
Reaction Type: Photooxidation
Relative Humidity: 1
Temperature: 25
Seed Name: DOS
Pressure: 740 Torr

DOI

https://doi.org/10.5065/7xw0-3w79

ICARUS Experiment Details

https://icarus.ucdavis.edu/experiment/689

Temporal Range

2007-11-29 to 2007-11-29

Related Links

Publication - Effects of Molecular Structure on Aerosol Yields from OH Radical-Initiated Reactions of Linear, Branched, and Cyclic Alkanes in the Presence of NOx

GCMD Science Keywords

• Atmosphere > Aerosols
• Atmosphere > Atmospheric Chemistry > Trace Gases/Trace Species

GCMD Instruments

• In Situ/Laboratory Instruments > Chemical Meters/Analyzers

File Media Types

• application/zip

Support Contact

DeVault, Marla
Ziemann
marla.devault@colorado.edu

Data Curator

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

Legal Constraints

Creative Commons Attribution 4.0 International License.

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Version History

20220117-142514