Experiment: Kroll Lab_20220521_Acetonitrile/Dimethyl Disulfide_Hydroxyl radical_Sodium nitrate

Experiment

Name: Kroll Lab_20220521_Acetonitrile/Dimethyl Disulfide_Hydroxyl radical_Sodium nitrate
Date: 2022-05-21

Organization
Kroll Lab

Chamber
Kroll main chamber

Experiment Set
DMSO and DMDS oxidation experiments

Goals
Measure product distribution photolysis of DMDS

Summary
DMDS photolyzed in the presence of NaNO3 seed particles. This is "Experiment 7" in Goss and Kroll, ACP, 2023 (Submitted).

Additional Notes
Note that NOx and ozone data are not dilution corrected.

Experiment Details

Categories:

  • Gas phase chemical reaction
  • Photolysis, any phase
  • Aerosol formation
Temperature: 20
Relative Humidity: 0
Seeded Experiment: Yes
Type of Seed: Sodium nitrate
Initial Seed Concentration Value: 56
Seed Concentration Units: micrograms_per_cubic_meter
Fuchs Adjusted Surface Area:
Condensation sink rate coefficient: 0
Reaction type:
Oxidant Name: Hydroxyl radical
Initial Oxidant Concentration Value: Not explicitly calculated (molecules_per_cubic_centimeter)
RO2 Main Fate: Not Sure
RO2 Lifetime: (Seconds)
Pressure:

Data Sets

ID Instrument File  
4491 NOx box 20220521 NOx data.csv
4492 AMS (as used for sulfur product characterization) 20220521 AMS data.csv
4493 modified PTR3 20220521 PTR3 data.csv
4494 Ozone monitor 20220521 ozone data.csv
4495 SO2 monitor 20220521 SO2 data.csv
4496 GC-FID 20220521 GC data.csv

Data Set plots
Choose a file: Choose the X-Axis:

Experiment Set Details

Name: DMSO and DMDS oxidation experiments
Time format and units: Seconds after experiment start
Description:
These experiments examine the oxidation of dimethyl sulfoxide (DMSO) and dimethyl disulfide (DMDS) under varied NOx conditions.

Collaborators:

Download

Download this Experiment (274.12 KB)

Contacts

Principal investigator:

Jesse H Kroll
E-mail: jhkroll@mit.edu
OrcID: 0000-0002-6275-521X

Data Manager:

Matthew B Goss
E-mail: mgoss@mit.edu

Reactants

Reactant Compound type Concentration Concentration units
Acetonitrile (6342) 4.5 Parts Per Billion
Dimethyl Disulfide (12232) 97 Parts Per Billion

20220521 experiment timeline.csv Timeline

Time (seconds) Event Description
-3960 Seed added
-3000 acetonitrile added
-1200 DMDS added
0 Lights turned on
15540 Lights turned off

Citations
Cite this experiment:

Characterizations
Light Flux Characterizations:
(None)
Particle Loss Characterizations:
(None)
Vapor Loss Characterizations:
(None)

Chamber Details

Name: Kroll main chamber
Volume in cubic meters: 7.5
Shape: Rectangular Prism
Surface area in cubic meters: 23
Flow Mode: Flow-through
Flow through rate in liters per minute: 14
Body Material: Teflon
Body thickness:
Replacement date:
Replacement frequency:
Cleaning method: Flushing with air Flushing with air with UV lights on Oxidation
o3 background: < 1 ppb
nox background: < 1 ppb (est. 10 ppt NO)
Particle background in micrograms per cubic meter:
Air filtration method: AADCO Model 737
Mixing method: 0
Mixing method material:
Temparature Control: Yes
Temparature measurements recorded: Yes
Temparature range (min degrees celcius): 12
Temparature range (max degrees celcius): 40
Humidity Control: Yes
Humidity Measurements Recorded: Yes
Relative humidity range (min percent):
Relative humidity range (max percent):
Particle experiment capability: 1
Lights: Yes
Light source type(s): Broad UV fluorescent with peak at 340 nm
Supplemental information:
Additional Notes: jNO2 ~ 0.06 min-1