Investigating Indoor Chemistry of Terpinolene Through the Use of a New Derivatization Agent

Details

• Personal Author:
  Ham JE ; Harrison JC ; Jackson, Stephen R. ; Wells JR
• Description:
  The gas-phase ozonolysis of terpinolene was investigated using a new carbonyl derivatization agent: O-tert-butylhydroxylamine hydrochloride (TBOX). Reaction products from the terpinolene/O3 system were collected in a water-filled impinger, TBOX was added, and the mixture was heated to 70 degrees C for two hours followed by extraction with 0.5 mL toluene. Using this lower molecular weight derivatization agent resulted in the observation of a tricarbonyl reaction product: 3,6-dioxoheptanal. Additionally, three other carbonyl compounds were observed: Methyl glyoxal, 4-methylcyclohex-3-en-1-one, and 6-oxo-3-(propan-2- ylidene)heptanal. The mechanism(s) for formation of these compounds is most likely due to O3 addition to terpinolene's carbon-carbon double bonds while the tricarbonyl formation may be due to a reaction from secondary OH radicals. Understanding the formation of di- and tricarbonyl species as a result of terpene ozonolysis is an important element of indoor occupant exposure assessment. [Description provided by NIOSH]
• Subjects:
  Chemistry Free Radicals Occupational Health Ozone Safety
• Keywords:
  Carbon Carbonyls Chemical Properties Chemicals Free Radicals Gases Molecular Structure
• Publisher:
  International Society of Indoor Air Quality and Climate
• Document Type:
  Text
• Genre:
  Proceedings
• 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
• Pages in Document:
  171-173
• NIOSHTIC Number:
  nn:20052758
• Citation:
  Healthy Buildings 2015 America: Innovation in a Time of Energy Uncertainty and Climate Adaptation, HB 2015, July 19-22, 2015, Boulder, Colorado. Santa Cruz, CA: International Society of Indoor Air Quality and Climate, 2015 Jul; 1:171-173
• Email:
  ozw0@cdc.gov
• CAS Registry Number:
  Hydroxylamine, O-(1,1-dimethylethyl)-, hydrochloride (1:1) (CAS RN 39684-28-1) ; Terpinolene (CAS RN 586-62-9)
• Federal Fiscal Year:
  2015
• Peer Reviewed:
  False
• Source Full Name:
  Healthy Buildings 2015 America: Innovation in a Time of Energy Uncertainty and Climate Adaptation, HB 2015, July 19-22, 2015, Boulder, Colorado
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:00aa0bbb24fb813075a165d464cf2bd4c6bba616a6c673a3179d0b2a77cc51f788c82100a21cabba35ec1d4bf618b0e9d58af2da523e5897d604d3c228eb073b
• Download URL:
  https://stacks.cdc.gov/view/cdc/212234/cdc_212234_DS1.pdf
• File Type:
  [PDF - 445.88 KB ]