Synonyms & Trade Names4-Chloronitrobenzene, p-Chloronitrobenzene, 1-Chloro-4-nitrobenzene, 4-Nitrochlorobenzene, PCNB, PNCB
IDLHCa [100 mg/m3]
NIOSH RELCa See Appendix A [skin]
OSHA PELTWA 1 mg/m3 [skin]
Physical DescriptionYellow, crystalline solid with a sweet odor.
Vapor Pressure(86°F): 0.2 mmHg
Ionization Potential9.96 eV
Upper Exposive Limit?
Lower Explosive Limit?
Incompatibilities & ReactivitiesStrong oxidizers, alkalis
Exposure Routesinhalation, skin absorption, ingestion, skin and/or eye contact
SymptomsAnoxia; unpleasant taste; anemia; methemoglobinemia; In Animals: hematuria (blood in the urine); spleen, kidney, bone marrow changes; reproductive effects; [potential occupational carcinogen]
Target OrgansBlood, liver, kidneys, cardiovascular system, spleen, bone marrow, reproductive system
Cancer Site[in animals: vascular & liver tumors]
Personal Protection/Sanitation(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated/Daily
Remove:When wet or contaminated
Provide:Eyewash, Quick drench
First Aid(See procedures)
Skin:Soap wash immediately
Swallow:Medical attention immediately
At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus
(APF = 50) Any air-purifying, full-facepiece respirator with an N100, R100, or P100 filter.
Click here for information on selection of N, R, or P filters.
Any appropriate escape-type, self-contained breathing apparatus
- Page last reviewed:April 11, 2016
- Page last updated:April 11, 2016
- Content source:
- National Institute for Occupational Safety and Health (NIOSH) Education and Information Division