P-NITROCHLOROBENZENE†

Chemical Identification
Chemical Identification
CAS # 100-00-5
Formula

C₆H₄ClNO₂

Synonyms

p-chloronitrobenzene; 4-chloronitrobenzene; 1-chloro-4-nitrobenzene; 4-nitrochlorobenzene; PCNB; PNCB

Physical Properties
Physical Properties
Physical description Yellow, crystalline solid with a sweet odor.
Boiling point 468°F Molecular weight 157.6
Freezing point/melting point 182°F Vapor pressure 0.2 mmHg at 86 °F
Flash point 230°F Vapor density 5.44
Specific gravity 1.52 Ionization potential 9.96 eV
Lower explosive limit (LEL) Upper explosive limit (UEL)
NFPA health rating 2 NFPA fire rating 1
NFPA reactivity rating 3 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.) 1872
Sampling group
Sampler/Sampling media Silica gel tube (150/75 mg) [SKC 226-10]
Sampling time*
Sampling volume (TWA)*

1-150 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 (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
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

1 mg/m³

REL-TWA TLV-TWA

0.1 ppm [1985]

PEL-TWA

0.1 ppm (0.64 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:

CARCINOGEN (Ca); REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION (LOQ 0.25 mg/m³). See Appendix A, NIOSH Potential Occupational Carcinogens.

Notes:

BEI®

Notes:
Health factors:  See NIH-NLM PubChem. IDLH

100 mg/m³

Carcinogenic classifications: IARC-3, NIOSH-Ca, TLV-A3 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 - P-Nitrochlorobenzene

NIOSH: Pocket Guide to Chemical Hazards - p-Nitrochlorobenzene

Literature References

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

Last Updated Date : 01/28/2021