Experiment: Jimenez Lab_20180725_1-Hexanol/1-octanol/1-Nonanol/1-DECANOL/Methyl nitrite/nitric oxide/1-DODECANOL_Hydroxyl radical_Ammonium sulfate_14.1_ug/m3_AS7

Experiment

Name: Jimenez Lab_20180725_1-Hexanol/1-octanol/1-Nonanol/1-DECANOL/Methyl nitrite/nitric oxide/1-DODECANOL_Hydroxyl radical_Ammonium sulfate_14.1_ug/m3_AS7
Date: 2018-07-25

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. Particle-phase chemical species were measured with EESI-MS.

Experiment Details

Categories:

  • Volatility and partitioning
Temperature: 25
Relative Humidity: 46
Seeded Experiment: Yes
Type of Seed: Ammonium sulfate
Initial Seed Concentration Value: 14.1
Seed Concentration Units: micrograms_per_cubic_meter
Fuchs Adjusted Surface Area:
Condensation sink rate coefficient: 46
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  
1961 SMPS AS20180725_SMPSData.csv
1962 1W Chamber Sensors 20180725_Chambersensors.csv
1963 NOx analyzer 20180725_NOxData.csv
1964 Ozone analyzer 20180725_O3Data.csv
3626 EESI-TOF (EESI-MS) AS20180725_EESI_Data.csv

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

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:

Download

Download this Experiment (1.7 MB)

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)
  • Alcohol
 280 Parts Per Billion
1-octanol (957)
  • Alcohol
 280 Parts Per Billion
1-Nonanol (8914)
  • Alcohol
 280 Parts Per Billion
1-DECANOL (8174)
  • Alcohol
 280 Parts Per Billion
Methyl nitrite (12231) 4 Parts Per Million
nitric oxide (145068)
  • NOx
 4 Parts Per Million
1-DODECANOL (8193)
  • Alcohol
 280 Parts Per Million

20180725_Timelines.csv Timeline

Time_UTC Event
17:52 Injected AS for 38 min 
18:03 Inject VOCs 
18:10 25.33 Torr NO 
18:18 25.5 Torr MeONO 
18:24:37 1st lights on 
18:31 Changed TPS settings
18:34 Changed TPS settings back; Still didn't see any product 
18:36 Start HEPA filter
18:39 Stop HEPA
19:55 Start HEPA filter
20:02 Stop HEPA
20:49 Start HEPA filter
20:54 Stop HEPA
21:16 Some EESI exposure to enclosure air 
21:38 End EESI exposure to enclosure air
22:11 Nefion suck from EESI caused loss of signals
22:43 Fixed
22:43 Filled bag to +2 Pa ; Now no EESI bypass, only passing 0.88 lpm through drier, RH=26.25 
22:57:59 4th lights on, see if drier affect EESI measurement 
23:10 Start HEPA filter
23:14 Stop HEPA
23:31 Flow sucrose into chamber, ~32 ug/m3 on top of wet AS 
23:57 Stop sucrose injection
23:46 EESI not through drier 
23:55 Through filter 
0:00 Through drier 
0:05 Through nothing, no big change compared to through drier 
0:12 Generate levoglucosan through lab SMPS cart, m/z 23 from 3 ions/ext to 9 then decrease, m/z173 decrease a little 

Citations
Cite this experiment: Publications associated with this experiment:

Characterizations
Light Flux 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