M-TOLUIDINE

Chemical Identification

CAS # 108-44-1
Formula

C₇H₉N

Synonyms

3-amino-1-methylbenzene; 1-aminophenylmethane; m-aminotoluene; 3-methylaniline; 3-methylbenzenamine; 3-toluidine; m-tolylamine

Physical Properties

Physical description Colorless to light-yellow liquid with an aromatic, amine-like odor.
Boiling point 398.1°F Molecular weight 107.2
Freezing point/melting point -23°F Vapor pressure 1 mmHg at 106°F
Flash point 187°F Vapor density
Specific gravity 0.989 Ionization potential 7.50 eV
Lower explosive limit (LEL) 1.1% Upper explosive limit (UEL)
NFPA health rating 2 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

Analyte code (IMIS no.) T339
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.

Bulk/Wipe Method

Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques

Device
Model/Type
Sampling information
(see manufacturer instructions)

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

N

Skin notation

Y

Skin notation

Y

Notes:

Not established

Notes:

See Appendix D - Substances with No Established RELs.

Notes:

BEI®

Notes:
Health factors:  See NIH-NLM PubChem. IDLH
Carcinogenic classifications: TLV-A4 Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

Last Updated Date : 01/05/2021