4-NITRODIPHENYL (4-NITROBIPHENYL)‡

Chemical Identification
Chemical Identification
CAS # 92-93-3
Formula
 
 

C₁₂H₉NO₂

Synonyms
 
 

p-nitrobiphenyl; p-nitrodiphenyl; p-phenylnitrobenzene; 4-phenylnitrobenzene; PNB

Physical Properties
Physical Properties
Physical description White to yellow, needle-like, crystalline solid with a sweetish odor.
Boiling point 644°F Molecular weight 199.2
Freezing point/melting point 237°F Vapor pressure
Flash point 290°F Vapor density
Specific gravity Ionization potential
Lower explosive limit (LEL) Upper explosive limit (UEL)
NFPA health rating NFPA fire rating
NFPA reactivity rating 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.) 1875
Sampling group
Sampler/Sampling media OSHA versatile sampler (OVS-2) - 13 mm XAD-2 tube (270/140 mg) with GFF enclosed [SKC 226-30-16]
Sampling time*
 
 

 

Sampling volume (TWA)*
 
 

240 L

Sampling flow rate (TWA)*
 
 

1.0 L/min

Sampling volume (STEL/Peak/C)*
 
 

 

Sampling flow rate (STEL/Peak/C)*
 
 

 

Analytical method instruments HPLC-UV
Method reference OSHA PV2082 (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.

Wipe Method
Wipe Method
Sampler/Sampling media
 
 

Wipe with GFF (37 mm), Type A/E [AP4003705]

Bulk Method
Bulk Method
 
 

Limit the amount of bulk submitted to 1 g or 1 mL.

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
 
 

Ca

REL-TWA
 
 

 

TLV-TWA
 
 

Exposure by all routes should be carefully controlled to levels as low as possible. [1992]

PEL-TWA
 
 

 

PEL-STEL
 
 

 

REL-STEL
 
 

 

TLV-STEL
 
 

 

PEL-STEL
 
 

 

PEL-C
 
 

 

REL-C
 
 

 

TLV-C
 
 

 

PEL-C
 
 

 

Skin notation
 
 

N

Skin notation
 
 

N

Skin notation
 
 

Y

Skin notation
 
 

N

Notes:
 
 

See 29 CFR 1910.1003, 13 Carcinogens.

Notes:
 
 

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

Notes:
 
 

 

Notes:
 
 

See California Code of Regulations, Title 8, Section 5209. Carcinogens.

Health factors:  See NIH-NLM PubChem. IDLH
Carcinogenic classifications: IARC-3, NIOSH-Ca, OSHA-Ca, TLV-A2 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 - 4-Nitrobiphenyl

NIOSH: Pocket Guide to Chemical Hazards - 4-Nitrobiphenyl

Literature References

 
 
  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - 4-Nitrodiphenyl. See annual publication for most recent information.

Last Updated Date : 12/15/2020