Experiment: Ng Research Group_20200922_3o_ApHN/Cyclohexane_None_No Seed_3o_ApHN photolysis exp2

Experiment

Name: Ng Research Group_20200922_3o_ApHN/Cyclohexane_None_No Seed_3o_ApHN photolysis exp2
Date: 2020-09-22

Organization
Ng Research Group

Chamber
Georgia Tech Environmental Chamber (Far)

Experiment Set
MT-ONs_photolysis_Wang

Goals
Photolysis of monoterpene-derived organic nitrates

Summary
Photolysis rate constant and mechanism of a-pinene-derived organic nitrate

Experiment Details

Categories:

  • Gas phase chemical reaction
  • Photolysis, any phase
Temperature: 23
Relative Humidity: 3
Seeded Experiment: No
Fuchs Adjusted Surface Area:
Condensation sink rate coefficient: 3
Reaction type:
Oxidant Name: None
Initial Oxidant Concentration Value: 0 (parts_per_million)
RO2 Main Fate: Not Sure
RO2 Lifetime: (Seconds)
Pressure:

Data Sets

ID Instrument File  
4235 FIGAERO-HR-ToF-CIMS (far, gas, time series) ApHN_CIMS.csv
4236 O3 monitor (far) O3.csv
4237 Spectrometer (far) Absorption cross sections of ApHN.csv

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

Experiment Set Details

Name: MT-ONs_photolysis_Wang
Time format and units: Time is defined for as 'time after experiment start' in minutes.
Description:
To study the photolysis mechanisms and rate constants of MT-ONs

Collaborators:

  • Yuchen Wang GT
  • Masayuki Takeuchi GT

Download

Download this Experiment (35.19 KB)

Contacts

Principal investigator:

Nga (Sally) Lee Ng
E-mail: ng@chbe.gatech.edu
OrcID: 0000-0001-8460-4765

Data Manager:

Taekyu Joo
Phone: (404) 385-2149
E-mail: tjoo6@gatech.edu

Reactants

Reactant Compound type Concentration Concentration units
3o_ApHN
  • Nitrate
 7.8 Parts Per Billion
Cyclohexane (8078)
  • Alkane
 10 Parts Per Million

time line.csv Timeline

Time (min) Event Description
-206 Fill the Far bag
-206 Start CIMS, O3 monitor, NO monitor
-161 to - 101 Inject 3o_ApHN
-92 to -72 Inject 10 ppmb CHEX
0 Turn on light
240 Turn off light
300-302 Inject 100 ppbv NO
360 End of the exp

Citations
Cite this experiment: Publication associated with this experiment:

Characterizations
Light Flux Characterizations:
2019-08-27 (#36)
Particle Loss Characterizations:
(None)
Vapor Loss Characterizations:
(None)

Chamber Details

Name: Georgia Tech Environmental Chamber (Far)
Volume in cubic meters: 12.6
Shape:
Surface area in cubic meters: 32.48865
Flow Mode: Batch
Flow through rate in liters per minute:
Body Material: Teflon
Body thickness:
Replacement date: 2017-02-07
Replacement frequency: As needed
Cleaning method: Flushing with air Flushing with air with UV lights on
o3 background: 3
nox background: 1
Particle background in micrograms per cubic meter:
Air filtration method: Pure air generator with membrane filter dryer
Mixing method: 0
Mixing method material:
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): 2
Relative humidity range (max percent): 70
Particle experiment capability: 1
Lights: Yes
Light source type(s): UVA Black Lamps, Natural Sunlight
Supplemental information:
Additional Notes: