NITROBENZENE†

Chemical Identification
Chemical Identification
CAS # 98-95-3
Formula
 

C₆H₅NO₂

Synonyms
 

essence of mirbane; nitrobenzol; oil of mirbane

Physical Properties
Physical Properties
Physical description Yellow to dark brown, oily liquid with a pungent odor like paste shoe polish.
Boiling point 411°F Molecular weight 123.11
Freezing point/melting point 42°F Vapor pressure 0.3 mmHg at 77°F
Flash point 190°F Vapor density 4.3
Specific gravity 1.20 Ionization potential 9.92 eV
Lower explosive limit (LEL) 1.8% at 200°F Upper explosive limit (UEL) 1.8%
NFPA health rating 3 NFPA fire rating 2
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.) 1870
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 Infrared spectrophotometer
Model/Type Miran 1A & 1B
Sampling information
(see manufacturer instructions)
0.9 ppm@11.9µm
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
 

1 ppm (5 mg/m³)

REL-TWA
 

1 ppm (5 mg/m³)

TLV-TWA
 

1 ppm [1992]

PEL-TWA
 

1 ppm (5 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:
 

 

Notes:
 

 

Health factors:  See NIH-NLM PubChem. IDLH
 

200 ppm

Carcinogenic classifications: IARC-2B, TLV-A3, EPA-L, NTP-R 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 - Nitrobenzene

NIOSH: Pocket Guide to Chemical Hazards - Nitrobenzene

Literature References

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

Last Updated Date : 01/05/2021