Development of methods for the determination of phosphoric acid PCl3, PCl5, P4, S10, in air.

Details

• Personal Author:
  Goodwin BE ; Harris JL ; Oberholtzer JE
• Description:
  Methods were developed for collecting and analyzing samples of phosphorus-trichloride (7719122) (PCl3), phosphorus-pentachloride (10026138) (PCl5), phosphorus-pentasulfide (1314803) (P4S10), and phosphoric-acid (7664382) (H3P04) from workplace atmospheres at concentrations close to applicable OSHA standards. The feasibility of reacting the analytes with organic reagents to produce stable derivatives which could be analyzed by gas chromatography was assessed. Techniques for generating atmospheres of air or nitrogen containing PCl3, PCl5, and P4S10 at concentrations close to OSHA standards were developed and tested. Classical wet chemical methods based on the phosphomolybdate colorimetric method for orthophosphate were developed and tested for each of the phosphorus analytes. Because the phosphorus halides were very reactive with atmospheric moisture and components of sampling devices, tentative methods were developed based on collection in water followed by colorimetric analysis. Tentative gas chromatographic methods for H3P04 and P4S10 based on reaction with a silylating agent and ethanol, respectively, were also developed. [Description provided by NIOSH]
• Subjects:
  Air Pollutants, Occupational Air Pollution, Indoor Chemistry Environmental Monitoring Occupational Health Safety Workplace
• Keywords:
  NIOSH-Contract; Contract-210-75-0038; Sampling-methods; Air-sampling; Workplace-studies; Air-contamination; Analytical-methods; Chemical-analysis; Analytical-instruments
• Document Type:
  Text
• Funding:
  Contract
• Genre:
  Report
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-127
• NIOSHTIC Number:
  nn:00102762
• Citation:
  Cambridge, MA: Arthur D. Little, Inc., 1977 May; :1-127
• CAS Registry Number:
  Phosphoric acid (CAS RN 7664-38-2) ; Phosphorus pentachloride (CAS RN 10026-13-8) ; Phosphorus sulfide (P2S5) (CAS RN 1314-80-3) ; Phosphorus trichloride (CAS RN 7719-12-2)
• Federal Fiscal Year:
  1977
• Peer Reviewed:
  False
• Source Full Name:
  Department of Health, Education and Welfare Center for Disease Control National Institute for Occupational Safety and Health, d-210-75-0038
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:7dc847c09aedf140bc731323e8446b4703641ae07d6ad9e7b7238120dab30b8f7dcaa9b938d34d035f87873a0fe7fec262d5d13dcaf290925445e82b6de3b57d
• Download URL:
  https://stacks.cdc.gov/view/cdc/241130/cdc_241130_DS1.pdf
• File Type:
  [PDF - 168.02 KB ]