Experiment: Browne Lab_20210330_Decamethylcyclopentasiloxane/Nitrous acid/Acetonitrile_Hydroxyl radical_No Seed
Experiment
Name: Browne Lab_20210330_Decamethylcyclopentasiloxane/Nitrous acid/Acetonitrile_Hydroxyl radical_No Seed
Date: 2021-03-30
Organization
Browne Lab
Chamber
Browne Lab Main Chamber
Experiment Set
D5 Experiments
Goals
Oxidation of D5 using HONO as the precursor to have the main RO2 fate be reaction with NO.
Summary
The siloxanol was the main product detected.Experiment Details
Categories:
- Gas phase chemical reaction
Relative Humidity: 0-5
Seeded Experiment: No
Fuchs Adjusted Surface Area:
Condensation sink rate coefficient: 0-5
Reaction type:
Oxidant Name: Hydroxyl radical
Initial Oxidant Concentration Value: 5e7 (molecules_per_cubic_centimeter)
RO2 Main Fate: NO
RO2 Lifetime: 0.02 (Seconds)
Pressure: 860 mbar
Data Sets
| ID | Instrument | File | |
|---|---|---|---|
| 3974 | Toluene CIMS |
D5HONO_20210330.csv
|
|
| 3975 | NOx Box |
20210330_D5_HONO_NOx.csv
|
Data Set plots
Experiment Set Details
Name: D5 Experiments
Time format and units: CIMS time is in number of seconds since Jan 1st, 1904 in UTC. NOx data is in M/D/Y Hr:Min:Sec format in local time.
Description:
CIMS and NOx data (if available) for measurements of D5 oxidation with conditions favoring different peroxy radical fates. Three radical precursors were used: HONO, H2O2, and Cl2.
Collaborators:
- Mitchell Alton University of Colorado at Boulder
- Eleanor Browne University of Colorado at Boulder
Contacts
Principal investigator:
Eleanor Browne
Phone: 303-735-7685
E-mail: eleanor.browne@colorado.edu
OrcID: 0000-0002-8076-9455
Data Manager:
Mitchell Alton
E-mail: mitchell.alton@colorado.edu
D3HONO_20210209_Logs.csv
Timeline
| Acquisition started (ID# 0) | 3695738618 |
| chamber background | 3695738625 |
| about to add NaNO2 | 3695738810 |
| heated NOx inlet at 202C | 3695740791 |
| 310C | 3695741224 |
| 380C | 3695741760 |
| End of acquisition | 3695742226 |
| Acquisition started (ID# 1) | 3695742226 |
| inlety at 4C | 3695742341 |
| about to add 20ul D3 | 3695742939 |
| 204C | 3695743433 |
| was at 55C | 3695743437 |
| 306C | 3695743819 |
| 388C | 3695744336 |
| cooling inlet. | 3695744982 |
| 370nm lights on | 3695745712 |
| End of acquisition | 3695745835 |
| Acquisition started (ID# 2) | 3695745835 |
| End of acquisition | 3695749443 |
| Acquisition started (ID# 3) | 3695749443 |
| NOX inlet at 204C | 3695752077 |
| 303C | 3695752448 |
| reached 285. Now set to 410C | 3695752739 |
| lights off | 3695753021 |
| at 360C now | 3695753025 |
| End of acquisition | 3695753051 |
| Acquisition started (ID# 4) | 3695753052 |
| heated inlet off | 3695753225 |
| Acquisition aborted after 162 complete writes. 1 additional bufs in the incomplete last write. | 3695754673 |
Citations
Characterizations
(None)
Particle Loss Characterizations:
(None)
Vapor Loss Characterizations:
(None)
Chamber Details
Name: Browne Lab Main Chamber
Volume in cubic meters: 1
Shape:
Surface area in cubic meters: 8
Flow Mode: Batch
Flow through rate in liters per minute:
Body Material: Teflon
Body thickness: 2
Replacement date: 2017-10-01
Replacement frequency: As needed
Cleaning method:
Flushing with air
Flushing with air with UV lights on
Oxidation
o3 background:
nox background:
Particle background in micrograms per cubic meter:
Air filtration method: Uses Aadco clean air
Mixing method: 0
Mixing method material:
Temparature Control: No
Temparature measurements recorded: No
Temparature range (min degrees celcius):
Temparature range (max degrees celcius):
Humidity Control: Yes
Humidity Measurements Recorded: Yes
Relative humidity range (min percent): 0
Relative humidity range (max percent): 80
Particle experiment capability: 1
Lights: Yes
Light source type(s):
Up to 10 fluorescent bulbs centered at 370nm, Up to 4 fluorescent bulbs centered at 254nm
Supplemental information:
Additional Notes: