---
experiment:
    id: '623'
    experiment_category:
        - 'Condensed-phase chemical reaction'
        - 'Multiphase chemical reaction'
    experiment_date: '2013-04-10'
    temperature: '16-22'
    relative_humidity: '50-83'
    seeded_experiment: '1'
    type_of_seed: 'Ammonium sulfate'
    seed_concentration_units: 'micrograms_per_cubic_meter'
    initial_seed_concentration_value: '93'
    fuchs_adjusted_surface_area: ''
    reaction_type:
        - 'Photooxidation'
        - 'Heterogeneous oxidation'
        - 'Other aqueous/aerosol phase'
    oxidant_name: 'Hydroxyl radical'
    ro2_main_fate: 'HO2'
    ro2_lifetime_seconds: ''
    experiment_goals: 'IEPOX was introduced to hydrated ammonium sulfate at 50% RH, the chamber was cooled to to remove the  IEPOX from the gas phase (no more traces in CIMS); this increased the RH to ~80%)  then H2O2 was added and lights turned on to photolyze the IEPOX on the particles and walls.'
    experiment_summary: 'The organic aerosol as seen on AMS reacted nearly all away. Fragmentation products such as hydroxyacetone, glycolaldehyde, formic acid, acetic acid, and peroxyacetic acid were seen as products on CIMS'
    additional_notes: 'Note that this experiment needs a chamber blank to subtract out the gas phase oxygenated voc formation from the walls.'
    light_flux_characterization_id: '28'
    particle_loss_characterization_id: ''
    vapor_loss_characterization_id: '9'
    data_file_original_name: '130410_Timeline.csv'
    oxidant_concentration_units: 'parts_per_billion'
    initial_oxidant_concentration_value: '1.5e6'
    reactants:
        -
            is_aerosol: ''
            pubchem_cid: ''
            reactant_name: 'trans-beta IEPOX'
            not_in_pubchem: '1'
            functional_group: []
            concentration_units: 'parts_per_billion'
            functional_group_other: ''
            initial_concentration_value: '15'
        -
            is_aerosol: ''
            pubchem_cid: '784'
            reactant_name: 'hydrogen peroxide'
            not_in_pubchem: ''
            functional_group: []
            concentration_units: 'parts_per_million'
            functional_group_other: ''
            initial_concentration_value: '2'
    skip_headers_timeline: '1'
    condensation_sink_rate_coefficient: ''
    is_draft: ''
    pressure: '750 Torr'
    doi: 'https://doi.org/10.5065/sawa-km16'
    download_file_path: 'experiments/EXP_623.zip'
    experiment_link: 'https://icarus.ucdavis.edu/experiment/623'
    experiment_set_name: 'IEPOX uptake experiments'
    experiment_set_link: 'https://icarus.ucdavis.edu/experimentset/215'
    chamber_link: 'https://icarus.ucdavis.edu/chamber/553'
    chamber_name: 'Near/Far Bag 2012-2015 (Tran)'
    experiment_name: 'Caltech Atmospheric Chamber_20130410_trans-beta IEPOX/hydrogen peroxide_Hydroxyl radical_Ammonium sulfate'
    experiment_created_at: '2021-09-01 15:30:53'
    experiment_updated_at: '2023-08-21 01:01:15'
chamber:
    id: '553'
    name: 'Near/Far Bag 2012-2015 (Tran)'
    chamber_flow_mode: 'Batch'
    chamber_shape: 'Rectangular Prism'
    chamber_volume_in_cubic_meters: '27'
    chamber_surface_area_in_square_meters: '41.8'
    flow_through_rate_in_liters_per_minute: ''
    chamber_body_material: 'Teflon'
    chamber_body_thickness_in_mils: '50'
    bag_replacement_date: ''
    bag_replacement_frequency: 'As needed'
    chamber_cleaning_method:
        - 'Flushing with air'
    o3_background: '0.5 ppb'
    nox_background: '0.1 ppb for Near, > 0.1 ppb for Far'
    particle_background: '< 0.1 ug/m3'
    air_filtration_method: 'Custom Filter'
    mixing_fans: ''
    mixing_fan_material: ''
    temperature_control: '1'
    temperature_measurements_recorded: '1'
    temperature_range_min_degrees_celsius: '20'
    temperature_range_max_degrees_celsius: '45'
    humidity_control: '1'
    humidity_measurements_recorded: '1'
    relative_humidity_range_min_percent: '5'
    relative_humidity_range_max_percent: '100'
    particle_experiment_capability: '1'
    lights: '1'
    light_source_type: 'UVA Black Lamps'
    link_to_supplemental_information: 'https://www.worldscientific.com/doi/abs/10.1142/9789813147355_0001'
    additional_notes: ''
    organization_id: '540'
    created_at: '2021-08-14T06:34:42.000000Z'
    updated_at: '2021-08-30T21:22:58.000000Z'
experimentSet:
    id: '215'
    name: 'IEPOX uptake experiments'
    experiment_set_description: 'Reactive uptake of cis and trans beta-IEPOX (isoprene epoxydiols with the epoxide in the 2-position, and the -CH2OH in the cis and trans conformations) onto dry and hydrated seeds of ammonium sulfate (AS), as well as other inorganic seeds. Note that wall loss is already applied to AMS particle data.'
    chamber_id: '553'
    created_at: '2021-08-14T06:42:47.000000Z'
    updated_at: '2023-08-23T08:01:34.000000Z'
    time_units: 'Experiment time (minutes, local)'
    publications:
        68: 'https:/dx.doi.org/10.5194/acp-14-3497-2014'
    downloadFileSize: '646372'
    download_file_path: 'experimentSets/EXPSET_215.zip'
    collaborators:
        -
            name_first: 'Tran'
            name_middle: 'B'
            name_last: 'Nguyen'
            affiliation: 'UC Davis'
        -
            name_first: 'Paul'
            name_middle: 'O'
            name_last: 'Wennberg'
            affiliation: 'Caltech'
organization:
    id: '540'
    lab_name: 'Caltech Atmospheric Chamber'
    lab_affiliation: 'California Institute of Technology, Pasadena, CA'
    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 ICARUS data are used in published materials, the data should be cited and the DOI for the Experiment or Experiment Set should be provided in the Data Availability statement.'
    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: '2019-07-21T00:30:22.000000Z'
    updated_at: '2020-05-28T10:48:49.000000Z'
    pi:
        -
            name_first: 'John'
            name_middle: 'H'
            name_last: 'Seinfeld'
            orcid: 'https://orcid.org/0000-0003-1344-4068'
            phone: '(626) 395-4635'
            email: 'seinfeld@caltech.edu'
    data_manager:
        -
            name_first: 'Stephanie'
            name_middle: ''
            name_last: 'Kong'
            phone: '626-395-3194'
            email: 'wkong@caltech.edu'

---
Local time (hh:mm),Action
12:15,Inject seed particles and mix air (chamber AT 50% RH)
12:55,Stop injecting seeds
13:15 (time 0),Inject IEPOX from a heated (~ 65 Celsius) glass bulb
15:15,Stop IEPOX injection
18:10,Decrease temperature to 16 Celsius; chamber RH went up to 77%
19:45,Injected 100uL or 2ppm theoretical of H2O2
20:45,Stop injection of H2O2
21:30,Lights on 100% intensity (RH is now 83%)
