Benz(a)pyrene
3,4-Benzopyrene
Benzo(d,e,f)chrysene
C20H12
Molecular mass: 252.3
ICSC # 0104
CAS # 50-32-8
RTECS # DJ3675000
EC # 601-032-00-3
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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.
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NO open flames.
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Water spray, foam, powder, carbon dioxide.
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Explosion
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Exposure
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See EFFECTS OF LONG-TERM OR REPEATED Exposure.
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AVOID ALL CONTACT!
AVOID Exposure OF (PREGNANT) WOMEN!
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•Inhalation
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Local exhaust or breathing protection.
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Fresh air, rest.
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•Skin
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MAY BE ABSORBED!
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Protective gloves.
Protective clothing.
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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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Safety goggles
or
eye protection in combination with breathing protection.
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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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Induce vomiting (ONLY IN CONSCIOUS PERSONS!).
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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Evacuate danger area!
Personal protection: complete protective clothing including self-contained breathing apparatus.
Do NOT let this chemical enter the environment.
Sweep spilled substance into sealable containers; if appropriate, moisten first to prevent dusting.
Carefully collect remainder,
then remove to safe place.
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Separated from
strong oxidants.
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T symbol
N symbol
R: 45-46-60-61-43-50/53
S: 53-45-60-61
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Important Data
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Physical State; Appearance:
PALE-YELLOW CRYSTALS
Physical Dangers:
Chemical Dangers:
Reacts
with
strong oxidants
causing fire and explosion hazard.
Occupational Exposure Limits:
TLV: Exposure by all routes should be carefully controlled to levels as low as possible A2 (suspected human carcinogen); (ACGIH 2005).
MAK:
Carcinogen category: 2; Germ cell mutagen group: 2;
(DFG 2005).
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its aerosol,
through the skin
and
by ingestion.
Inhalation Risk:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.
Effects of Short-Term Exposure:
Effects of Long-Term or Repeated Exposure:
This substance is carcinogenic to humans.
May cause heritable genetic damage to human germ cells.
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: 496°C
Melting point: 178.1°C
Density: 1.4
g/cm3
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Solubility in water: none (<0.1 g/100 ml)
Vapour pressure :
negligible
Octanol/water partition coefficient as log Pow: 6.04
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Environmental
Data
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The substance is very toxic to aquatic organisms.
Bioaccumulation of this chemical may occur in fish, in plants and in molluscs.
The substance may cause long-term effects in the aquatic environment.
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N O T E S
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Do NOT take working clothes home.
Benzo(a)pyrene is present as a component of polycyclic aromatic hydrocarbons (PAHs) in the environment, usually resulting from the incomplete combustion or pyrolysis of organic matters, especially fossil fuels and tobacco.
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ADDITIONAL INFORMATION
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ICSC: 0104
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BENZO(a)PYRENE
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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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