Label abbreviations descriptions

N,N-DIMETHYLANILINE†

Chemical Identification
CAS # 121-69-7
Formula
 

C₈H₁₁N
Synonyms
 

N,N-dimethylbenzeneamine; N,N-dimethylphenylamine [Note: Also known as dimethylaniline which is a correct synonym for xylidine.]

Physical Properties
Physical description Pale yellow, oily liquid with an amine-like odor.
Boiling point 378°F Molecular weight 121.2
Freezing point/melting point 36°F Vapor pressure 1 mmHg
Flash point 142°F Vapor density 4.17
Specific gravity 0.96 Ionization potential 7.14 eV
Lower explosive limit (LEL) Upper explosive limit (UEL)
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
Analyte code (IMIS no.) 0931
Sampling group
Sampler/Sampling media XAD-7 (80/40 mg sections, 20/60 mesh) coated with 10% phosphoric acid [SKC 226-98]
Sampling time*
 

150 min
Sampling volume (TWA)*
 

30 L
Sampling flow rate (TWA)*
 

0.2 L/min
Sampling volume (STEL/Peak/C)*
 

 
Sampling flow rate (STEL/Peak/C)*
 

 
Analytical method instruments GC-FID
Method reference OSHA PV2064 (partially 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 Detector tube Infrared spectrophotometer
Model/Type Gastec 181 Miran 1A & 1B
Sampling information
(see manufacturer instructions) 		2.5-45 ppm range 0.7 ppm@8.6 µm

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
 

5 ppm (25 mg/m³)

 REL-TWA
 

5 ppm (25 mg/m³)

 TLV-TWA
 

5 ppm [1990]

 PEL-TWA
 

5 ppm (25 mg/m³)
PEL-STEL
 

 

 REL-STEL
 

10 ppm (50 mg/m³)

 TLV-STEL
 

10 ppm [1990]

 PEL-STEL
 

10 ppm (50 mg/m³)
PEL-C
 

 

 REL-C
 

 

 TLV-C
 

 

 PEL-C
 

 
Skin notation
 

Y

 Skin notation
 

Y

 Skin notation
 

Y

 Skin notation
 

Y
Notes:
 

See 29 CFR 1910.1000 Table Z-1.

 Notes:
 

 

 Notes:
 

BEI®

 Notes:
 

 
Health factors:  See NIH-NLM PubChem. IDLH
 

100 ppm
Carcinogenic classifications: IARC-3, 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