para-Nitrobenzoic acid
para-Carboxynitrobenzene
C7H5NO4 / HOOCC6H4NO2
Molecular mass: 167.1
ICSC # 1684
CAS # 62-23-7
RTECS # DH5075000
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Combustible.
Gives off irritating or toxic fumes (or gases) in a fire.
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NO open flames.
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Foam.
Dry powder.
Carbon dioxide.
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Explosion
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Risk of explosion in contact with potassium hydroxide
.
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Exposure
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PREVENT DISPERSION OF DUST!
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•Inhalation
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Cough.
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Local exhaust.
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Fresh air, rest.
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•Skin
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Redness.
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Protective gloves.
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Remove contaminated clothes.
Rinse and then wash skin with water and soap.
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•Eyes
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Redness.
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Safety spectacles
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Rinse with plenty of water (remove contact lenses if easily possible).
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•Ingestion
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Nausea.
Vomiting.
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Rinse mouth.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Personal protection: particulate filter adapted to the airborne concentration of the substance.
Sweep spilled substance into covered containers.
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Separated from
strong oxidants,
bases
and
strong reducing agents
.
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Signal: Warning
Excl mark
Causes skin irritation
Causes eye irritation
May cause respiratory irritation
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Important Data
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Physical State; Appearance:
WHITE TO YELLOW CRYSTALS
Physical Dangers:
Dust explosion possible if in powder or granular form, mixed with air.
If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc.
Chemical Dangers:
Reacts
with
bases
,
reducing agents
and
strong oxidants
.
The substance decomposes
on heating
and
on burning
producing
toxic fumes
including
nitrogen oxides
.
Occupational Exposure Limits:
TLV not established.
MAK not established.
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Routes of Exposure:
The substance can be absorbed into the body by ingestion.
Inhalation Risk:
A nuisance-causing concentration of airborne particles can be reached quickly when dispersed, especially if powdered.
Effects of Short-Term Exposure:
The substance
is irritating to
the eyes
,
the respiratory tract
and
the skin
.
Effects of Long-Term or Repeated Exposure:
Animal tests show that this substance possibly causes toxicity to human reproduction or development.
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Physical
Properties
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Boiling point (decomposes): 350°C
Melting point: 242°C
Density: 1.61
g/cm3
Solubility in water, g/100 ml at 25°C: 0.03
(poor)
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Vapour pressure, Pa at 50°C: 1
Flashpoint: 201°C c.c.
Auto-ignition temperature: 300°C
Explosive limits, vol% in air: 1.8 - ?
Octanol/water partition coefficient as log Pow: 1.89
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Environmental
Data
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N O T E S
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ADDITIONAL INFORMATION
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ICSC: 1684
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4-NITROBENZOIC ACID
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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