Experiment: Ng Research Group_20191214_/Cyclohexane_None_No Seed_1o_BpHN photolysis exp1


Name: Ng Research Group_20191214_/Cyclohexane_None_No Seed_1o_BpHN photolysis exp1
Date: 2019-12-14

Ng Research Group

Georgia Tech Environmental Chamber (Far)

Experiment Set

Photolysis of monoterpene-derived organic nitrates

Photolysis rate constant and mechanism of b-pinene-derived organic nitrate

Experiment Details


  • 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)

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.
To study the photolysis mechanisms and rate constants of MT-ONs


  • Yuchen Wang GT
  • Masayuki Takeuchi GT


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


Reactant Compound type Concentration Concentration units
  • Nitrate
2.7 Parts Per Billion
  • Alkane
10 Parts Per Million

time line.csv Timeline

Time (min) Event Description
-222 Fill the Far bag
-222 Start CIMS, O3 monitor
-160 to - 100 Inject 1o_BpHN
-77 to -57 Inject 10 ppmb CHEX
0 Turn on light
240 Turn off light
300 End of the exp

Light Flux Characterizations:
2019-08-27 (#36)
Particle Loss Characterizations:
Vapor Loss Characterizations:

Chamber Details

Name: Georgia Tech Environmental Chamber (Far)
Volume in cubic meters: 12.6
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: