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4-Nitrobiphenyl

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Synonyms & Trade Names
p-Nitrobipheny, 4-Nitrodiphenyl, p-Nitrodiphenyl, 4-Phenylnitrobenzene, p-Phenylnitrobenzene, PNB
CAS No.
92-93-3
RTECS No.
DV5600000
DOT ID & Guide
Formula
C₆H₅C₆H₄NO₂
Conversion
IDLH
Ca [N.D.]
See: IDLH INDEX
Exposure Limits
NIOSH REL
Ca See Appendix A
OSHA PEL
[1910.1003] See Appendix B
Measurement Methods
NIOSH P&CAM273 (II-4);
OSHA PV2082
See: NMAM or OSHA 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
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Soap wash immediately
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations

(See Appendix E)

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

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 1395   MEDICAL TESTS: 0162
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health