4-Nitrobiphenyl
Synonyms & Trade Names
p-Nitrobipheny, 4-Nitrodiphenyl, p-Nitrodiphenyl, 4-Phenylnitrobenzene, p-Phenylnitrobenzene, PNB
Exposure Limits
Measurement Methods
Physical Description
White to yellow, needle-like, crystalline solid with a sweetish odor.
Molecular Weight
199.2
Boiling Point
644°F
Melting Point
237°F
Solubility
Insoluble
Vapor Pressure
?
Ionization Potential
?
Specific Gravity
?
Flash Point
290°F
Upper Explosive Limit
?
Lower Explosive Limit
?
Combustible Solid
Incompatibilities & Reactivities
Strong reducers
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
headache, drowsiness, dizziness; dyspnea (breathing difficulty); ataxia, lassitude (weakness, exhaustion); methemoglobinemia; urinary burning; acute hemorrhagic cystitis; [potential occupational carcinogen]
Target Organs
Bladder, blood
Cancer Site
[in animals: bladder 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
Change:Daily
Provide:Eyewash, Quick drench
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated/Daily
Remove:When wet or contaminated
Change:Daily
Provide:Eyewash, Quick drench
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Soap wash immediately
Breathing:Respiratory support
Swallow:Medical attention immediately
Eye:Irrigate immediately
Skin:Soap wash immediately
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations
NIOSH
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
Escape:
(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
See also
Page last reviewed: October 30, 2019
Content
source: National Institute for Occupational Safety and Health