Gas-Phase Chemistry of Benzyl Alcohol: Reaction Rate Constants and Products with OH Radical and Ozone

Details

• Personal Author:
  Harrison JC ; Wells JR
• Description:
  A bimolecular rate constant, kOH+Benzyl alcohol, of (28 +/- 7) × 10-12 cm3 molecule-1 s-1 was measured using the relative rate technique for the reaction of the hydroxyl radical (OH) with benzyl alcohol, at (297 +/- 3) K and 1 atm total pressure. Additionally, an upper limit of the bimolecular rate constant, kO3+Benzyl alcohol, of approximately 6 × 10-19 cm3 molecule-1 s-1 was determined by monitoring the decrease in benzyl alcohol concentration over time in an excess of ozone (O3). To more clearly define part of benzyl alcohol's indoor environment degradation mechanism, the products of the benzyl alcohol + OH were also investigated. The derivatizing agents O-(2,3,4,5,6-pentafluorobenzyl)hydroxylamine (PFBHA) and N,O-bis(trimethylsilyl) trifluoroacetamide (BSTFA) were used to positively identify benzaldehyde, glyoxal and 4-oxopentanal as benzyl alcohol/OH reaction products. The elucidation of other reaction products was facilitated by mass spectrometry of the derivatized reaction products coupled with plausible benzyl alcohol/OH reaction mechanisms based on previously published volatile organic compound/OH gas-phase reaction mechanisms. [Description provided by NIOSH]
• Subjects:
  Air Pollutants, Occupational Air Pollution Air Pollution, Indoor Chemistry Environmental Health Occupational Health Safety
• Keywords:
  Air-quality Author Keywords: OH Rate Constant Benzyl Alcohol Chemical-composition Chemical-properties Chemical-synthesis Gases Indoor-environmental-quality Indoor Chemistry Organic-chemicals Organic-compounds Organic-vapors Ozone Rate Constant Quantitative-analysis Sampling-methods

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• 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:
  43
• Issue:
  4
• NIOSHTIC Number:
  nn:20035038
• Citation:
  Atmos Environ 2009 Feb; 43(4):798-804
• 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
• Email:
  ozw0@cdc.gov
• Federal Fiscal Year:
  2009
• NORA Priority Area:
  Services
• Peer Reviewed:
  True
• Source Full Name:
  Atmospheric Environment
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:3ece953de4c68b49964c3f80ed0cb9bea15474a675bb8033604012694f1a12f9a4237cd33f16e6c2400df0ed6519a208617c2d466aeaae32a2b1215cbe324924
• Download URL:
  https://stacks.cdc.gov/view/cdc/187028/cdc_187028_DS1.pdf
• File Type:
  [PDF - 381.88 KB ]