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Carbonyl Fluoride

General Description

  • Synonyms: Carbon difluoride oxide, Carbon fluoride oxide, Carbon oxyfluoride, Carbonyl difluoride, Fluoroformyl fluoride, Fluorophosgene
  • OSHA IMIS Code Number: C105
  • Chemical Abstracts Service (CAS) Registry Number: 353-50-4
  • NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: FG6125000
  • Department of Transportation Regulation Number (49 CFR 172.101) and Emergency Response Guidebook: 2417 125
  • NIOSH Pocket Guide to Chemical Hazards, Carbonyl fluoride: chemical description, physical properties, potentially hazardous incompatibilities, and more
  • Chemical Description and Physical Properties:
    • colorless gas with a pungent and very irritating odor

Exposure Limits

  • American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 2 ppm, 5.4 mg/m3 TWA; 5 ppm, 13 mg/m3 STEL
  • National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 2 ppm TWA; 5 ppm STEL

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • Midget Fritted Glass Bubbler containing 10 mL 0.1 N NaOH
  • maximum volume: 480 Liters
  • maximum flow rate: 2.0 L/min (TWA)
  • maximum volume: 30 Liters
  • maximum flow rate: 2.0 L/min (STEL)
  • current analytical method: Ion Specific Electrode; ISE
  • method reference: 2 (OSHA In-House File)
  • method classification: Not Validated
  • note: Submit as a separate sample; analyte hydrolyzes instantly to fluoride in water. Analysis is for total F-. Proposed method + follows OSHA method ID-110.

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