4-Chlorobenzoic acid
Chlorodracylic acid
ClC6H4COOH / C7H5ClO2
Molecular mass: 156.6
ICSC # 0503
CAS # 74-11-3
RTECS # DG4976010
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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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Water spray, powder.
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Explosion
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Exposure
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See NOTES.
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•Inhalation
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Ventilation.
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Fresh air, rest.
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•Skin
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Protective gloves.
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Rinse and then wash skin with water and soap.
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•Eyes
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Safety spectacles
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Do not eat, drink, or smoke during work.
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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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Sweep spilled substance into covered containers; if appropriate, moisten first to prevent dusting.
Carefully collect remainder,
then remove to safe place.
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Important Data
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Physical State; Appearance:
ODOURLESS
WHITE
SOLID IN VARIOUS FORMS
Physical Dangers:
Chemical Dangers:
On combustion, forms toxic and corrosive fumesincludinghydrogen chloride.
The solution in water is a weak acid.
Occupational Exposure Limits:
TLV not established.
MAK: IIb (not established but data are available); (DFG 2005).
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Routes of Exposure:
The substance can be absorbed into the body
by ingestion.
Inhalation Risk:
No indication can be given about the rate in which a harmful concentration in the air is reached when dispersed.
Effects of Short-Term Exposure:
See Notes.
Effects of Long-Term or Repeated Exposure:
See Notes.
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Physical
Properties
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Melting point: 243°C
Density: 1.5
g/cm3
Solubility in water:
none
Vapour pressure, Pa at 25°C: 0.3
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Relative vapour density (air = 1): 5.4
Relative density of the vapour/air-mixture at 20°C (air = 1): 1
Flash point: 238°C
Auto-ignition temperature: 545°C
Octanol/water partition coefficient as log Pow: 2.65
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Environmental
Data
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N O T E S
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Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken.
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ADDITIONAL INFORMATION
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ICSC: 0503
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p-CHLOROBENZOIC 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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