Identification

Title

ICARUS Chamber Experiment: Ziemann_20150211_Methyl nitrite/Nitric oxide/4-Decanol_Hydroxyl radical_DOS

Alternative title(s)

d789329

Abstract

<p>Goals:<br/> Determine SOA yield of OH radical oxidation of the VOC</p> <p>Summary:<br/> Experiments were conducted in an 8.0 m^3 FEP Teflon environmental<br/> chamber in Boulder, CO, that was filled with clean, dry air [&amp;lt; 5<br/> ppb of hydrocarbons and &amp;lt; 1% relative humidity (RH)] from<br/> two Aadco clean air systems and operated at ambient<br/> temperature (23 C) and pressure (630 Torr). The VOC was<br/> added to the chamber by evaporating a measured amount of<br/> the compound from a heated glass bulb into a stream of<br/> ultrahigh-purity (UHP) N2. Approximately 200 g/m^3 dioctyl<br/> sebacate (DOS) seed particles in UHP N2 were added from an<br/> evaporation-condensation apparatus. Known amounts of<br/> methyl nitrite and NO were prepared on a vacuum manifold<br/> using a calibrated glass bulb and absolute pressure gauge and<br/> then flushed into the chamber with UHP N2. Reactions were<br/> initiated by turning on blacklights that covered two walls of the<br/> chamber at 50% intensity (JNO2 = 0.37 per hour) for one hour. Photolysis of methyl nitrite created OH radicals with an average concentration of 4 x 107 molecules cm^-3, as determined from the measured decay<br/> of the VOC and estimated OH reaction rate constants. The<br/> VOC, methyl nitrite, and NO concentrations were 1, 5, and 5<br/> ppm.</p> <p>Organization: Ziemann<br/> Lab Affiliation: University of Colorado, Boulder, Boulder, CO, USA<br/> Chamber: Janet (Chamber 1)</p> <p>Experiment Category: Gas phase chemical reaction, Photolysis, any phase, Aerosol formation<br/> Oxidant: Hydroxyl radical<br/> Reactants: Methyl nitrite, Nitric oxide, 4-Decanol<br/> Reaction Type: Photooxidation<br/> Relative Humidity: &amp;lt;1<br/> Temperature: 23<br/> Seed Name: DOS<br/> Pressure: 630</p>

Resource type

dataset

Resource locator

https://gdex.ucar.edu/datasets/d789329/

protocol: https

name: Dataset Description

description: Related Link

function: information

https://gdex.ucar.edu/datasets/d789329/dataaccess/

protocol: https

name: Data Access

description: Related Link

function: download

Unique resource identifier

code

codeSpace

Dataset language

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

environment

Keywords

Keyword set

keyword value

dataset

originating controlled vocabulary

title

reference date

date type

revision

effective date

2021-03-30

Keyword set

keyword value

LABORATORY > LABORATORY

originating controlled vocabulary

title

reference date

date type

revision

effective date

2025-10-03

Keyword set

keyword value

ICARUS > Integrated Chamber Atmospheric data Repository for Unified Science

originating controlled vocabulary

title

reference date

date type

revision

effective date

2025-10-03

Keyword set

keyword value

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > TRACE GASES/TRACE SPECIES

originating controlled vocabulary

title

reference date

date type

revision

effective date

2025-10-03

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

2015-02-11

End position

2015-02-11

Dataset reference date

date type

publication

effective date

2022-01-07

Frequency of update

notPlanned

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Creative Commons Attribution 4.0 International License

Limitations on public access

None

Responsible organisations

Responsible party

organisation name

email address

datahelp@ucar.edu

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

organisation name

NSF NCAR Geoscience Data Exchange

email address

datahelp@ucar.edu

web address

https://gdex.ucar.edu

name: NSF NCAR Geoscience Data Exchange

description: The Geoscience Data Exchange (GDEX), managed by the Computational and Information Systems Laboratory (CISL) at NSF NCAR, contains a large collection of meteorological, atmospheric composition, and oceanographic observations, and operational and reanalysis model outputs, integrated with NSF NCAR High Performance Compute services to support atmospheric and geosciences research.

function: download

responsible party role

pointOfContact

Metadata date

2025-10-09T01:40:06Z

Metadata language