α-NAPHTHYLAMINE‡

Chemical Identification
Chemical Identification
CAS # 134-32-7
Formula

C₁₀H₉N

Synonyms

1-aminonaphthalene; 1-naphthylamine

Physical Properties
Physical Properties
Physical description Colorless crystals with an ammonia-like odor.
Boiling point 573°F Molecular weight 143.2
Freezing point/melting point 122°F Vapor pressure 1 mmHg at 220°F
Flash point 315°F Vapor density 4.93
Specific gravity 1.12 Ionization potential 7.30 eV
Lower explosive limit (LEL) Upper explosive limit (UEL)
NFPA health rating 2 NFPA fire rating 1
NFPA reactivity rating 0 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 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

NA

Skin notation

N

Notes:

See 29 CFR 1910.1003, 13 Carcinogens.

Notes:

CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A

Notes:

Not established

Notes:

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

Health factors:  See NIH-NLM PubChem. IDLH
Carcinogenic classifications: IARC-3, NIOSH-Ca, OSHA-Ca 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 - ⍺-Naphthylamine

NIOSH: Pocket Guide to Chemical Hazards - ⍺-naphthylamine

Literature References

Last Updated Date : 01/14/2021