Investigation of terpinolene + ozone or terpinolene + nitrate radical reaction products using denuder/filter apparatus

Details

• Personal Author:
  Harrison JC ; Wells JR
• Description:
  Terpinolene's (1-methyl-4-(propan-2-ylidene)cyclohexene) reaction with ozone or the nitrate radical was investigated using a denuder/filter apparatus in order to characterize gas-phase and particulate reaction products. Identification of the reaction products (i.e., aldehydes, ketones, dicarbonyls and carboxylic acids) was made using two derivatization methods; O-(2,3,4,5,6-pentafluorobenzyl)hydroxylamine (PFBHA) to derivatize the carbonyl products or 3-Ethyl-1-[3-(dimethylamino)propyl]carbodiimide hydrochloride (EDC) and 2,2,2-trifluoroethylamine hydrochloride (TFEA) to derivatize the carboxylic acid products. Proposed carbonyl products for ozonolysis of terpinolene are: 4-methylcyclohex-3-en-1-one, 2-hydroxy-4-methylcyclohex-3-en-1-one, glyoxal, methyl glyoxal, 3-oxobutanal, and 6-oxo-3-(propan-2-ylidene)heptanal. Proposed carbonyl products for nitrate radical reaction of terpinolene are: 2-hydroxy-4-methylcyclohex-3-en-1-one, glyoxal, methyl glyoxal, and 4-oxopentanal. No carboxylic acid products were detected with either oxidizing reactant. [Description provided by NIOSH]
• Subjects:
  Aldehydes Butanones Chemistry Chemistry, Analytic Formaldehyde Free Radicals Laboratories Nitrates Occupational Health Ozone Particulate Matter Safety

  More +
• Keywords:
  Analytical-chemistry Analytical-processes Author Keywords: Ozone Carbonyls Carboxylic-acids Chemical-kinetics Chemical-properties Chemical-reactions Denuder Filters Free-radicals Gas-indicators Ketones Kinetics Laboratory-testing Nitrate Radical Organic-compounds Oxygenated Organic Compounds Particulates Physical-chemistry Reaction-rates Reaction Products

  More +
• ISSN:
  1352-2310
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  HELD - Health Effects Laboratory Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  80
• NIOSHTIC Number:
  nn:20043222
• Citation:
  Atmos Environ 2013 Dec; 80:524-532
• Contact Point Address:
  J.R. Wells, Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, 1095 Willowdale Road, Morgantown, WV 26505, USA
• Email:
  ozw0@cdc.gov
• CAS Registry Number:
  Cyanamide (CAS RN 420-04-2) ; Cyclohexene (CAS RN 110-83-8) ; Ozone (CAS RN 10028-15-6) ; Terpinolene (CAS RN 586-62-9)
• Federal Fiscal Year:
  2014
• NORA Priority Area:
  Healthcare and Social Assistance ; Services
• Peer Reviewed:
  True
• Source Full Name:
  Atmospheric Environment
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:5ecc6e0f7b45462247107a58ec4b1bb70a9c4f2a2e68d0eee2f1690827c72c39df3a0895b123df1d04e7e15f077bd2f02822a11b39d6ed3fb456b72d071295b2
• Download URL:
  https://stacks.cdc.gov/view/cdc/195176/cdc_195176_DS1.pdf
• File Type:
  [PDF - 1.10 MB ]