---
experiment:
    id: '746'
    experiment_category:
        - 'Gas phase chemical reaction'
        - 'Photolysis, any phase'
        - 'Aerosol formation'
    experiment_date: '2018-02-11'
    temperature: '25'
    relative_humidity: '1'
    seeded_experiment: '1'
    type_of_seed: 'DOS'
    seed_concentration_units: 'micrograms_per_cubic_meter'
    initial_seed_concentration_value: '150'
    fuchs_adjusted_surface_area: ''
    reaction_type:
        - 'Photooxidation'
    oxidant_name: 'Hydroxyl radical'
    ro2_main_fate: 'NO'
    ro2_lifetime_seconds: ''
    experiment_goals: 'Determine SOA yield of OH radical oxidation of the VOC'
    experiment_summary: 'Experiments were performed at ambient temperature (?25°C) and pressure (?84?kPa) in an 8?m3 FEP Teflon environmental chamber. Purified air was supplied by AADCO clean air generators (<5?ppb hydrocarbons, and <1% RH). The chamber was first seeded with ?200?µg m?3 of either dioctyl sebocate (DOS) or dioctyl phthalate (DOP) polydisperse aerosol with peak particle diameter of ?200?nm, which was added from an evaporation-condensation source. A measured mass of an alkyl nitrate was then added from a heated glass bulb using ultra-high purity (UHP) N2. Thermal decomposition was avoided by heating the bulb to only ?65°C, well below the temperatures alkyl nitrates encounter during gas chromatographic analysis, and limiting the residence time in the gas phase to ?1?s by flushing with 15?L min?1 of UHP N2. Glass bulbs containing a measured pressure of methyl nitrite or NO were prepared on a vacuum manifold and added to the chamber with UHP N2 in amounts sufficient to achieve concentrations of 5?ppm of each in the chamber. Reactions were initiated by turning on blacklights that are located on two sides of the chamber for 60?min at a light intensity corresponding to an NO2 photolysis rate constant of 0.37?min?1. Under these conditions OH radicals were generated from the photolysis of methyl nitrite (Atkinson et al. 1981) with average concentrations of ?3?×?107 molecules cm?3, based on the amount of alkyl nitrate that reacted and an estimated rate constant for its reaction with OH radicals (Ziemann and Atkinson 2012).'
    additional_notes: ''
    light_flux_characterization_id: '43'
    particle_loss_characterization_id: ''
    vapor_loss_characterization_id: ''
    data_file_original_name: '1-decylnitrate_Timeline.csv'
    oxidant_concentration_units: 'parts_per_billion'
    initial_oxidant_concentration_value: ''
    reactants:
        -
            is_aerosol: ''
            pubchem_cid: '12231'
            reactant_name: 'Methyl nitrite'
            not_in_pubchem: ''
            functional_group: []
            concentration_units: 'parts_per_million'
            functional_group_other: ''
            initial_concentration_value: '5'
        -
            is_aerosol: ''
            pubchem_cid: '145068'
            reactant_name: 'Nitric oxide'
            not_in_pubchem: ''
            functional_group:
                - 'NOx'
            concentration_units: 'parts_per_million'
            functional_group_other: ''
            initial_concentration_value: '5'
        -
            is_aerosol: ''
            pubchem_cid: '74909'
            reactant_name: 'Decyl nitrate'
            not_in_pubchem: ''
            functional_group:
                - 'Nitrate'
            concentration_units: 'parts_per_million'
            functional_group_other: ''
            initial_concentration_value: '1'
    skip_headers_timeline: '1'
    condensation_sink_rate_coefficient: ''
    is_draft: ''
    pressure: '630'
    doi: ''
    download_file_path: 'experiments/EXP_746.zip'
    experiment_link: 'https://icarus.ucdavis.edu/experiment/746'
    experiment_set_name: 'Nitrate Group OH, High NOx'
    experiment_set_link: 'https://icarus.ucdavis.edu/experimentset/236'
    chamber_link: 'https://icarus.ucdavis.edu/chamber/540'
    chamber_name: 'Janet (Chamber 1)'
    experiment_name: 'Ziemann_20180211_Methyl nitrite/Nitric oxide/Decyl nitrate_Hydroxyl radical_DOS'
    experiment_created_at: '2022-01-07 13:57:47'
    experiment_updated_at: '2022-01-16 00:50:52'
chamber:
    id: '540'
    name: 'Janet (Chamber 1)'
    chamber_flow_mode: 'Batch'
    chamber_shape: 'Rectangular Prism'
    chamber_volume_in_cubic_meters: '8'
    chamber_surface_area_in_square_meters: '24'
    flow_through_rate_in_liters_per_minute: ''
    chamber_body_material: 'Teflon'
    chamber_body_thickness_in_mils: ''
    bag_replacement_date: ''
    bag_replacement_frequency: 'As needed'
    chamber_cleaning_method:
        - 'Flushing with air'
    o3_background: ''
    nox_background: '1 ppb'
    particle_background: '10 cm-3'
    air_filtration_method: 'Two Aadco 737-14 Clean air generators supply low VOC (<5 ppb), low NOx (<5 ppb) dry (RH < 1%) air'
    mixing_fans: '1'
    mixing_fan_material: 'Teflon-coated fan'
    temperature_control: ''
    temperature_measurements_recorded: ''
    temperature_range_min_degrees_celsius: ''
    temperature_range_max_degrees_celsius: ''
    humidity_control: ''
    humidity_measurements_recorded: '1'
    relative_humidity_range_min_percent: ''
    relative_humidity_range_max_percent: ''
    particle_experiment_capability: '1'
    lights: '1'
    light_source_type: '["UVA Black Lamps"]'
    link_to_supplemental_information: ''
    additional_notes: ''
    organization_id: '548'
    created_at: '2019-08-14T16:19:39.000000Z'
    updated_at: '2022-01-11T19:32:30.000000Z'
experimentSet:
    id: '236'
    name: 'Nitrate Group OH, High NOx'
    experiment_set_description: 'A systematic study was conducted on the effect of a nitrate functional group on secondary organic aerosol (SOA) products and yields from reactions of C10 alkyl nitrate isomers with OH radicals in the presence of NOx. The 1- through 5-decyl nitrate isomers were reacted in an environmental chamber, and the SOA yield was measured.'
    chamber_id: '540'
    created_at: '2021-12-21T18:58:49.000000Z'
    updated_at: '2022-01-16T08:50:52.000000Z'
    time_units: 'Minutes since start of experiment'
    publications:
        79: 'https:/dx.doi.org/10.1080/02786826.2020.1757033'
    downloadFileSize: '8955'
    download_file_path: 'experimentSets/EXPSET_236.zip'
    collaborators: []
organization:
    id: '548'
    lab_name: 'Ziemann'
    lab_affiliation: 'University of Colorado, Boulder, Boulder, CO, USA'
    lab_currently_active: '1'
    legal_constraints_statement: 'The Principal Investigator (PI) and institution retain any and all rights to the data that they generated. Use of ICARUS shared data in published materials or materials under review, including peer-reviewed publications or submissions, conference presentations, reports, and proposals, requires notification of the PI. For materials meant for dissemination that significantly depend on the data shared by specific PIs, the database user is required to offer the specific PI(s), and associated coworkers, co-authorship in said publications. When any of the ICARUS data are used in published materials, an acknowledgement statement should be included, recognizing the efforts of the ICARUS and NCAR DSET teams and support from the National Science Foundation.'
    access_constraints_statement: 'These data are openly accessible by all registered users. Accounts are available free of charge following the registration of user information with a valid email address.'
    additional_notes: ''
    created_at: '2019-08-14T15:55:15.000000Z'
    updated_at: '2021-05-05T18:46:14.000000Z'
    pi:
        -
            name_first: 'Paul'
            name_middle: 'J'
            name_last: 'Ziemann'
            orcid: '0000-0001-7419-0044'
            phone: '3034929654'
            email: 'paul.ziemann@colorado.edu'
    data_manager:
        -
            name_first: 'Marla'
            name_middle: ''
            name_last: 'DeVault'
            phone: ''
            email: 'marla.devault@colorado.edu'

---
?Time (hr:min),Event Description
11:38,Begin adding seed
12:45,Finish adding seed
13:56,Turn lights on
3:06 PM,Turn lights off