Experiment: Jimenez Lab_20170316_1-Hexanol/1-octanol/1-Nonanol/1-DECANOL/Methyl nitrite/nitric oxide/1-DODECANOL_Hydroxyl radical_alpha pinene_107.4_ug/m3_aP1
Experiment
Name: Jimenez Lab_20170316_1-Hexanol/1-octanol/1-Nonanol/1-DECANOL/Methyl nitrite/nitric oxide/1-DODECANOL_Hydroxyl radical_alpha pinene_107.4_ug/m3_aP1
Date: 2017-03-16
Organization
Jimenez Lab
Chamber
1-White (1W)
Experiment Set
Gas-aerosol-wall partitioning kinetics from Liu CC 2019 (various organic and inorganic seed aerosol types)
Goals
Fast burst photooxidation of alkanols (high-NOx). Gas-aerosol-wall partitioning kinetics. Determine accommodation coefficient (alpha) and effective volatility under differing seed aerosol types (differing phase and polarities, inorganic/organic, humid/dry, standards/SOA).
Summary
Alkanols, Methyl nitrite, NO, and particle seed added to chamber, UV lights turned on for 10 sec, multifunctional products formed. In most experiments in this experimental set, 10-s UV light/photochemistry burst repeated a few times. SMPS measurements of particle size distributions were conducted to determine particle formation, surface area and condensational sink rate coefficients. Gas-phase chemical species were measured with nitrate CIMS.Experiment Details
Categories:
- Volatility and partitioning
Relative Humidity: <1
Seeded Experiment: Yes
Type of Seed: alpha pinene
Initial Seed Concentration Value: 107.4
Seed Concentration Units: micrograms_per_cubic_meter
Fuchs Adjusted Surface Area:
Condensation sink rate coefficient: <1
Reaction type:
Oxidant Name: Hydroxyl radical
Initial Oxidant Concentration Value: 4.4E8 (molecules_per_cubic_centimeter)
RO2 Main Fate: NO
RO2 Lifetime: 1.5 (Seconds)
Pressure:
Data Sets
| ID | Instrument | File | |
|---|---|---|---|
| 494 | SMPS |
AP20170316_SMPSData.csv
|
|
| 495 | Nitrate-CIMS (NO3- CIMS) |
AP20170316_CIMS_Data.csv
|
|
| 496 | 1W Chamber Sensors |
20170316_Chambersensors.csv
|
Data Set plots
Experiment Set Details
Name: Gas-aerosol-wall partitioning kinetics from Liu CC 2019 (various organic and inorganic seed aerosol types)
Time format and units: All times UTC. Data is in Igor time, sec since midnight 1904
Description:
Fast burst photooxidation of alkanols (high-NOx). Gas-aerosol-wall partitioning kinetics of multifunctional oxidize species generated. Determine accommodation coefficient (alpha) and effective volatility under differing seed aerosol types (differing phase and polarities, inorganic/organic, humid/dry, standards/SOA). (Liu et al., 2019). In one experiment, toluene was oxidized instead of the alkanol mixture.
These data were also used for investigating activity coefficients (gamma) of the oxidized species in the different seed particles (Liu et al., 2021).
Collaborators:
Contacts
Principal investigator:
Jose L Jimenez
E-mail: jose.jimenez@colorado.edu
OrcID: https://orcid.org/0000-0001-6203-1847
Data Manager:
Anne Handschy
E-mail: cudatabasemanager@gmail.com
Reactants
| Reactant | Compound type | Concentration | Concentration units |
|---|---|---|---|
| 1-Hexanol (8103) |
|
280 | Parts Per Billion |
| 1-octanol (957) |
|
280 | Parts Per Billion |
| 1-Nonanol (8914) |
|
280 | Parts Per Billion |
| 1-DECANOL (8174) |
|
280 | Parts Per Billion |
| Methyl nitrite (12231) | 4 | Parts Per Million | |
| nitric oxide (145068) |
|
4 | Parts Per Million |
| 1-DODECANOL (8193) |
|
280 | Parts Per Million |
20170316_Timelines.csv
Timeline
| Time_UTC | Event |
| 16:00 | (approx) Connect CIMS to chamber |
| 16:20 | (approx) Injected 4.4 uL a-pinene |
| 16:30 | Injected O3, 0.1 V 0.1 slpm for 1 min |
| 16:39 | Injected O3 for another 2min, reading 180 ppb ; SOA mass ~ 12 ug/m3 |
| 16:58 | Injected another 9.5 uL a-pinene |
| 17:08 | 44 ug/m3 |
| 17:20 | 79 ug/m3 |
| 17:28 | Increased HNO3 flow to 5 sccm ; SOA ~ 93 ug/m3 |
| 17:35 | 103 ug/m3 |
| 17:44 | Injected 25.24 Torr NO ; SOA ~ 93 ug/m3 |
| 18:13 | 26.8 Torr MeONO |
| 18:17 | Start JK cycle for the first light without VOC |
| 18:18 | Light on for 10s |
| 18:48 | Injected VOC |
| 18:53 | Started UV light cycle |
| 20:08 | 2nd Light on for 20s ; 3rd light on for 20s |
| 22:48 | Stop |
Citations
Characterizations
2021-12-24 (#38)
Particle Loss Characterizations:
2021-11-04 (#32)
Vapor Loss Characterizations:
2021-11-05 (#12)
Chamber Details
Name: 1-White (1W)
Volume in cubic meters: 20
Shape: Rectangular Prism
Surface area in cubic meters: 22.65
Flow Mode: Batch
Flow through rate in liters per minute:
Body Material: Teflon
Body thickness: 2
Replacement date: 2014-07-01
Replacement frequency: As needed
Cleaning method:
Flushing with air
Flushing with air with UV lights on
o3 background: 0
nox background: 0
Particle background in micrograms per cubic meter:
Air filtration method: AADCO 737-15, Parker Balston IT0500-3560
Mixing method: 1
Mixing method material: PTFE-coated steel fan
Temparature Control: Yes
Temparature measurements recorded: Yes
Temparature range (min degrees celcius): 4
Temparature range (max degrees celcius): 40
Humidity Control: Yes
Humidity Measurements Recorded: Yes
Relative humidity range (min percent): 0
Relative humidity range (max percent): 85
Particle experiment capability: 1
Lights: Yes
Light source type(s):
UVA Black Lamps, Visible fluorscent bulbs
Supplemental information:
Additional Notes: UV_LIGHT_TYPE: F40/350BL/ECO (40W) and FR48T12/BL-350/VHO/182 (115W)
UV_LIGHT_PEAK_EMISSION_WAVELENGTH (nm): 350 (FWHM=20)
VISIBLE_LIGHT_TYPE: T5HO tubes (54W)
VISIBLE_LIGHT_PEAK_EMISSION_WAVELENGTH (nm): 490
Number of lights: x 115W UV tubes, y 40W UV tubes, z Vis tubes
All three types of lights are evenly distributed between four walls of the chamber
See light characterization metafiles for more information