P-TOLUIDINE

Chemical Identification
Chemical Identification
CAS # 106-49-0
Formula

C₇H₉N

Synonyms

4-aminotoluene; 4-methylaniline; 4-methylbenzenamine; 4-toluidine; tolylamine

Physical Properties
Physical Properties
Physical description White solid with an aromatic odor.
Boiling point 393°F Molecular weight 107.2
Freezing point/melting point 112°F Vapor pressure 1 mmHg@108°F
Flash point 188°F Vapor density
Specific gravity 1.05 Ionization potential 7.50 eV
Lower explosive limit (LEL) 1.1% Upper explosive limit (UEL) 6.6%
NFPA health rating 3 NFPA fire rating 2
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.) T105
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*

100 min

Sampling volume (TWA)*

100 L

Sampling flow rate (TWA)*

1 L/min

Sampling volume (STEL/Peak/C)*

15 L

Sampling flow rate (STEL/Peak/C)*

1 L/min

Analytical method instruments GC-ECD
Method reference OSHA 73 (fully validated)
Notes
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 REL-TWA TLV-TWA

2 ppm [1984]

PEL-TWA

2 ppm (9 mg/m³)

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

NA

Skin notation

Y

Skin notation

Y

Skin notation

Y

Notes:

Not established

Notes:

CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION (LOQ 0.15 ppm). See Appendix A, NIOSH Potential Occupational Carcinogens.

Notes:

BEI®

Notes:
Health factors:  See NIH-NLM PubChem. IDLH
Carcinogenic classifications: NIOSH-Ca, TLV-A3 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 - P-Toluidine

NIOSH: Pocket Guide to Chemical Hazards - p-Toluidine

Literature References

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

Last Updated Date : 01/11/2021