β-NAPHTHYLAMINE‡

Chemical Identification
Chemical Identification
CAS # 91-59-8
Formula

C₁₀H₉N

Synonyms

2-aminonaphthalene; 2-naphthylamine

Physical Properties
Physical Properties
Physical description Odorless, white to red crystals with a faint, aromatic odor.
Boiling point 583°F Molecular weight 143.2
Freezing point/melting point 232°F Vapor pressure 1 mmHg at 226°F
Flash point 315°F Vapor density
Specific gravity 1.06 at 208°F Ionization potential 9.71 eV
Lower explosive limit (LEL) Upper explosive limit (UEL)
NFPA health rating NFPA fire rating
NFPA reactivity rating NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs
Monitoring Methods Used by OSHA
Monitoring Methods Used by OSHA
Analyte code (IMIS no.) 1815
Sampling group
Sampler/Sampling media 2 GFFs (37 mm) coated with sulfuric acid, in 3-piece cassette, separated by the ring section [SKC 225-9004]
Sampling time*
Sampling volume (TWA)*

100 L

Sampling flow rate (TWA)*

0.1 L/min

Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments GC-ECD
Method reference OSHA 93 (fully validated)
Notes

Within 10 hours after sampling, transfer filter to glass vial containing 2 mL deionized water.

Special requirements

* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Wipe Method
Wipe Method
Sampler/Sampling media
Bulk Method
Bulk Method
On-Site Screening Techniques
On-Site Screening Techniques
Device
Model/Type
Sampling information
(see manufacturer instructions)
Exposure Limits
Exposure Limits
OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
NIOSH REL
Up to 10-hour TWA
(ST) STEL
(C) Ceiling
ACGIH TLV©
8-hour TWA
(ST) STEL
(C) Ceiling
CAL/OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
PEL-TWA

Ca

REL-TWA TLV-TWA

Exposure by all routes should be carefully controlled to levels as low as possible. [1979]

PEL-TWA
PEL-STEL REL-STEL TLV-STEL PEL-STEL
PEL-C REL-C TLV-C PEL-C
Skin notation

N

Skin notation

N

Skin notation

N

Skin notation

N

Notes:

See 29 CFR 1910.1003, 13 Carcinogens.

Notes:

CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A, NIOSH Potential Occupational Carcinogens.

Notes: Notes:

See California Code of Regulations, Title 8, Section 5209. Carcinogens.

Health factors:  See NIH-NLM PubChem. IDLH
Carcinogenic classifications: IARC-1, NIOSH-Ca, NTP-K, OSHA-Ca, TLV-A1 Notes:

Ca

AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
Additional Resources and Literature References
Additional Resources and Literature References

NOAA: CAMEO Chemicals - β-Naphthylamine

NIOSH: Pocket Guide to Chemical Hazards - β-Naphthylamine

Literature References

  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - β-Naphthylamine. See annual publication for most recent information.

Last Updated Date : 01/14/2021