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General Description

  • Synonyms: m-Aminotoluene; m-Methylaniline; 3-Methylbenzenamine; m-Tolylamine
  • OSHA IMIS Code Number: T339
  • Chemical Abstracts Service (CAS) Registry Number: 108-44-1
  • NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: XU2800000; 14667
  • Department of Transportation Regulation Number (49 CFR 172.101) and Emergency Response Guidebook: UN 1708 Poison
  • NIOSH Pocket Guide to Chemical Hazards, m-Toluidine: Chemical description, physical properties, potentially hazardous incompatibilities, and more
  • Chemical Description and Physical Properties:
    • molecular weight: 107.17
    • boiling point: 203-204°C
    • molecular formula: C7H9N

Exposure Limits

  • American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 2 ppm, 8.8 mg/m3 TWA (Skin); Appendix A4 (Not Classifiable as a Human Carcinogen)

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • Coated Glass Fiber Filters (37 mm) in 3 piece cassette. Coating is Sulfuric Acid.
  • maximum volume: 100 Liters
  • maximum flow rate: 1.0 L/min
  • current analytical method: Gas Chromatography; GC/ECD
  • method reference: 2 (OSHA Method 73)
  • sampling analytical error: 0.09
  • method classification: Fully Validated
  • note: Filters may be obtained by OSHA personnel from the Salt Lake Technical Center (SLTC).

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