Synonyms: Aminocyclohexane; Aminohexahydrobenzene; Aniline Hexahydro; CHA; Hexahydrobenzenamine

OSHA IMIS Code Number: 0842

Chemical Abstracts Service (CAS) Registry Number: 108-91-8

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: GX0700000; 28789

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: UN2375 129; Flammable Liquid and Corrosive

Chemical Description and Physical Properties:

molecular weight: 99.20
molecular formula: C₆H₁₃N

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 10 ppm, 41 mg/m³ TWA; Appendix A4 (Not Classifiable as a Human Carcinogen)

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 10 ppm TWA

Health Effects: Irritation-Eye, Nose, Throat, Skin---Marked (HE14) Mutagen (HE2); CNS disturbances (HE7)

Primary Laboratory Sampling/Analytical Method (SLC1):

• sampling media: Coated XAD-7 Tube (80/40 mg sections) Coating is 10% Phosphoric Acid.
  analytical solvent: 50:50 Methanol: Deionized Water
  alternate solvent: 0.88 N NH4OH in Methanol
  maximum volume: 20 Liters
  maximum flow rate: 0.2 L/min
  current analytical method: Gas Chromatography; GC/FID
  method reference: 2 (OSHA In-House File)
  method classification: Partially Validated
  note: The ammonium hydroxide eliminates the need for neutralization of the desorbing solution but the ammonia liberated may be an interference in the analysis.
  

Secondary Laboratory Sampling/Analytical Method (SAM2):

• device: Detector Tube
  company: MSA
  part #: 92115
  range: 5-100 ppm
  class: Mfg
  
  device: Detector Tube
  company: Gastec
  part#: 180
  range: 1-60 ppm
  class: Mfg
  

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