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General Description

  • Synonyms: para-Dimethylaminoazobenzene
  • OSHA IMIS Code Number: 0929
  • Chemical Abstracts Service (CAS) Registry Number: 60-11-7
  • NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: BX5020000; 8216
  • Chemical Description and Physical Properties:
    • yellow, crystalline leaflets
    • molecular weight: 225
    • boiling point: Sublimes
    • melting point: 240°F

Exposure Limits

  • OSHA Permissible Exposure Limit (PEL):
  • National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): Carcinogen, Use 29 CFR 1910.1015

Health Factors

  • Carcinogenic Classification:
  • Potential Symptoms: Enlarged liver, hepatic and renal dysfunction; contact dermatitis; coughing, wheezing, difficulty breathing, bloody sputum, bronchial secretions; frequent urination, hematuria, dysuria; (carcinogenic)
  • Health Effects: Liver Cancer (HE1)
  • Affected Organs: Liver, skin, bladder

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • Glass Fiber Filter (37 mm) in series with Midget impinger containing 15 mL Isopropanol
  • maximum volume: 60 Liters
  • maximum flow rate: 1.0 L/min
  • current analytical method: High Performance Liquid Chromatography; HPLC/UV
  • analytical solvent: Dry Methanol or Isopropanol
  • method reference: 2 (OSHA In-house File)
  • method classification: Not Validated
Wipe Sampling Method:
  • Glass Fiber Filter
  • analytical solvent: Dry, Methanol, or Isop
Bulk Method:
  • Limit the amount of bulk submitted to one gram or one mL.

Column: C18 Mobile Phase: 80:20 Methanol:Water Detector Wavelength: 259nm Detection Limit: 6 ng/inj

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