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General Description

  • Synonyms: 2 sec-Butylpenol (Czech)
  • OSHA IMIS Code Number: B705
  • Chemical Abstracts Service (CAS) Registry Number: 89-72-5
  • NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: SJ8920000; 56581
  • Department of Transportation Regulation Number (49 CFR 172.101) and Emergency Response Guidebook: UN2228 Keep Away From Food
  • NIOSH Pocket Guide to Chemical Hazards, o-sec-Butylphenol: chemical description, physical properties, potentially hazardous incompatibilities, and more
  • Chemical Description and Physical Properties:
    • molecular weight: 150.24
    • molecular formula: C10H14O

Exposure Limits

  • American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 5 ppm, 31 mg/m3 TWA (Skin)
  • National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 5 ppm TWA (Skin)

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • XAD-7 Tube (100/50 mg sections; 15/50 mesh)
  • maximum volume: 20 Liters
  • maximum flow rate: 0.2 L/min
  • current analytical method: Gas Chromatography; GC/FID
  • analytical solvent: Methanol
  • method reference: 2 (OSHA In-house File)
  • sampling and analytical error: 0.09
  • method classification: Partially Validated

Column: C18 Mobile Phase: 40:60 Methanol:Water Detector Wavelength: 218 or 254nm Detection Limit: 0.04 mg/m3

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