NITROTOLUENE, ALL ISOMERS†

Chemical Identification
Chemical Identification
CAS # 99-08-1; 99-99-0; 88-72-2; 1321-12-6
Formula
 

C₇H₇NO₂

Synonyms
 

m-methylnitrobenzene; 3-methylnitrobenzene; meta-nitrotoluene; 3-nitrotoluene, p-methylnitrobenzene; 4-methylnitrobenzene; para-nitrotoluene; 4-nitrotoluene; o-methylnitrobenzene; 2-methylnitrobenzene; ortho-nitrotoluene; 2-nitrotoluene

Physical Properties
Physical Properties
Physical description Exists as either a yellow solid crystal or liquid.
Boiling point Molecular weight
Freezing point/melting point Vapor pressure 0.1 mmHg
Flash point 223°F Vapor density
Specific gravity Ionization potential
Lower explosive limit (LEL) Upper explosive limit (UEL)
NFPA health rating 3 NFPA fire rating 1
NFPA reactivity rating 1 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.) 1945
Sampling group
Sampler/Sampling media Silica gel tube (150/75 mg) [SKC 226-10]
Sampling time*
 

 

Sampling volume (TWA)*
 

10-150 L

Sampling flow rate (TWA)*
 

0.01-1 L/min

Sampling volume (STEL/Peak/C)*
 

 

Sampling flow rate (STEL/Peak/C)*
 

 

Analytical method instruments GC-FID
Method reference NIOSH 2005 (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
 

5 ppm (30 mg/m³)

REL-TWA
 

2 ppm (11 mg/m³)

TLV-TWA
 

2 ppm [1992]

PEL-TWA
 

2 ppm (11 mg/m³)

PEL-STEL
 

 

REL-STEL
 

 

TLV-STEL
 

 

PEL-STEL
 

 

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
 

200 ppm

Carcinogenic classifications: IARC-3 Notes:
 

 

AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
 

 

Additional Resources and Literature References
Additional Resources and Literature References

NOAA: CAMEO Chemicals - Nitrotoluenes

NIOSH: Pocket Guide to Chemical Hazards - m-Nitrotoluene

Literature References

 
  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Nitrotoluene, all isomers. See annual publication for most recent information.
  • NIOSH Pocket Guide to Chemical Hazards - p-Nitrotoluene, o-Nitrotoluene.

Last Updated Date : 01/29/2021