Thermal Oxidative Degradation Studies of Phosphate Esters

Details

• Personal Author:
  Christos T ; Hartstein AM ; Kaufman J ; Kratzer RH ; Nakahara JH ; Paciorek KJL
• Description:
  Five phosphate esters - tri-p-tolyl phosphate, tributyl phosphate, tris(1,3-dichloro-2-propyl)phosphate, tris(2,3-dibromopropyl)phosphate, and tris(2-chloroethyl)phosphate - were subjected to thermal oxidative degradation in air at 370 degrees C. Degradation mechanisms were postulated and the toxic hazards assessed based on the volatiles produced. Tri-p-tolyl phosphate was found to undergo only minimal degradation; the other compounds were decomposed extensively. Butene was the main product formed on tributyl phosphate decomposition; hydrogen halides and halogenated C2- and C3-species were the main products formed by the halogenated phosphate esters. In the case of tris(l,3 dichloro 2-propyl)phosphate acrolein, not hydrogen chloride, presented the major toxic hazard. [Description provided by NIOSH]
• Subjects:
  Esters Occupational Health Oxidants Phosphoric Acids Safety Temperature
• Keywords:
  Oxidative Processes Phosphates Thermal Effects Thermodynamic Reactions
• Series:
  Mining Publications
• ISSN:
  0002-8894
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PRC - Pittsburgh Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  39
• Issue:
  8
• NIOSHTIC Number:
  nn:10000231
• Citation:
  Am Ind Hyg Assoc J 1978 Aug; 39(8):633-639
• Federal Fiscal Year:
  1978
• Peer Reviewed:
  True
• Source Full Name:
  American Industrial Hygiene Association Journal
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:2fd8d7642bf750a323b045b9d881cc5ebbc80536bcfe5227cf8bed173e77f3719b4f4390351a53c243bb3646f4a2a6854a1ac371f3bb2d471e97f9f852e82526
• Download URL:
  https://stacks.cdc.gov/view/cdc/219345/cdc_219345_DS1.pdf
• File Type:
  [PDF - 372.45 KB ]