ICARUS Chamber Experiment: Caltech Atmospheric Chamber_20130415_trans-beta IEPOX/hydrogen peroxide_Hydroxyl radical_Ammonium sulfate_AqueousPhotooxidation

Goals:
This is similar to the 130410 experiment except that H2O2 is atomized with ammonium sulfate in the particles. 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 lights turned on to photolyze the IEPOX on the particles.

Summary:
Gaseous H2O2 was not observed when the H2O2 was atomized with AS in the particle, which suggests all the reaction was in the particle phase. 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

Organization: Caltech Atmospheric Chamber
Lab Affiliation: California Institute of Technology, Pasadena, CA
Chamber: Near/Far Bag 2012-2015 (Tran)

Experiment Category: Condensed-phase chemical reaction, Multiphase chemical reaction
Oxidant: Hydroxyl radical
Reactants: trans-beta IEPOX, hydrogen peroxide
Reaction Type: Photooxidation, Heterogeneous oxidation, Other aqueous/aerosol phase
Relative Humidity: 49-80
Temperature: 16-22
Seed Name: Ammonium sulfate
Pressure: 750 Torr

DOI

https://doi.org/10.5065/wzcd-nr42

ICARUS Experiment Details

https://icarus.ucdavis.edu/experiment/624

Temporal Range

2013-04-15 to 2013-04-15

Related Links

Publication - Organic aerosol formation from the reactive uptake of isoprene epoxydiols (IEPOX) onto non-acidified inorganic seeds

GCMD Science Keywords

• Atmosphere > Aerosols
• Atmosphere > Atmospheric Chemistry > Trace Gases/Trace Species

GCMD Instruments

• In Situ/Laboratory Instruments > Chemical Meters/Analyzers

File Media Types

• application/zip

Support Contact

Kong, Stephanie
Caltech Atmospheric Chamber
wkong@caltech.edu

Data Curator

GDEX Curator
UCAR/NCAR - GDEX
gdex@ucar.edu

Legal Constraints

Creative Commons Attribution 4.0 International License.

Access Constraints

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.

Full Metadata

DIF XML
ISO19139 XML
OAI DC
JSON-LD

Version History

20230823-020157

20230822-020213

20230821-020117

20230820-020237

20230819-020253

20230818-020256

20230817-020311

20230816-020208

20230815-020154

20230814-020135

20230811-020138

20230810-020153

20230809-020112

20230808-020144

20230807-020316

20230806-020128

20230805-020135

20230804-020115

20230803-020144

20230801-020042

20221127-082102

20221127-075123

20221127-072839

20221127-020428

20221126-020524

20221125-020337

20221124-020416

20221123-020611

20221122-020544

20221121-020353

20221120-020408

20221119-020318

20221118-020356

20221117-020359

20221116-020330

20221115-020427

20221113-020348

20221112-020355

20221111-020418

20221110-020357

20221109-020411

20221108-020539

20221107-020259

20221106-010303

20221105-020308

20221104-020346

20221103-020339

20221102-020308

20221101-020436

20221031-020346

20221030-020315

20221029-020416

20221028-020333

20221027-020349

20221026-020401

20221025-020711

20221024-020356

20221023-020351

20221022-020330

20221021-020430

20221020-020445

20221019-020455

20221018-020828

20221017-020444

20221016-020624

20221015-020538

20221014-020533

20221013-020424

20221012-020500

20221011-020347

20221010-020347

20221009-020408

20221008-020433

20221007-020404

20221006-020439

20221005-020421

20221004-020415

20221003-020432

20221002-020444

20221001-020524

20220930-020411

20220929-020435

20220927-020405

20220926-020658

20220925-020400

20220924-020440

20220923-020440

20220922-020500

20220921-020413

20220920-020440

20220919-020427

20220918-020408

20220917-021107

20220916-020348

20220915-020409

20220914-020421

20220913-020415

20220912-020432

20220911-020343

20220910-032353

20220909-020430

20220908-020443

20220907-020625

20220906-020528

20220905-020611

20220904-020441

20220903-020527

20220222-020919

20220221-021046

20220220-020901

20220219-020923

20220218-020921

20220217-020937

20220204-020303

20220203-020304

20220202-020448

20220201-020511

20220131-020247

20220130-020246

20220129-020342

20220128-021934

20220127-022307

20220126-020230

20220125-020353

20220124-020404

20220123-020254

20220122-020301

20220121-020316

20220120-020316

20220119-020305

20220118-020319

20220117-020243

20220116-020159

20220115-020223

20220114-020234

20220113-020305

20220112-020242

20220111-020248

20220110-020229

20220109-020203

20220108-020233

20220107-020152

20220106-020218

20220105-020234

20220104-020249

20220103-020148

20220102-032426

20220101-020225

20211231-020204

20211229-020138

20211228-020133

20211227-020130

20211226-020131

20211225-020127

20211224-020120

20211223-020120

20211222-020125

20211221-020144

20211220-020127

20211219-020117

20211218-020111

20211217-020204

20211216-020228

20211215-020146

20211214-020131

20211213-020115

20211212-020107

20211211-020100

20211210-020124

20211209-020145

20211208-020113

20211207-020140

20211206-020120

20211205-020047

20211204-020108

20211203-020134

20211202-020058

20211201-020151

20211130-020126

20211129-020104

20211128-020045

20211127-020108

20211126-020131

20211125-020115

20211124-020112

20211123-020056

20211122-020107

20211121-020048

20211120-020104

20211119-020140

20211118-020829

20211117-020159

20211116-020228

20211115-020349

20211114-020134

20211113-020145

20211112-020156

20211111-020133

20211110-020133

20211109-020150

20211108-020121

20211107-010104

20211106-020133

20211105-015955

20211104-015958

20211103-020433

20211102-020557

20211101-020545

20211031-020511

20211030-020434

20211029-020445

20211028-020519

20211027-020457

20211026-020514

20211025-020510

20211024-020417

20211023-020424

20211022-020510

20211020-021344

20211019-021415

20211016-021235

20211015-021422

20211012-020646

20211006-020250

20211005-015717

20211004-015644

20211003-015635

20211002-015640

20211001-015802

20210930-015847

20210902-114903

20210901-163920