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BENZO(a)PYRENE
ICSC: 0104
Peer-Review Status: 17.10.2005 Validated
Benz(a)pyrene
3,4-Benzopyrene
Benzo(d,e,f)chrysene 
CAS #: 50-32-8 RTECS #: DJ3675000
EC #: 601-032-00-3
EINECS #: 200-028-5
    Formula: C20H12
Molecular mass: 252.3

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible.  NO open flames.  Use water spray, foam, powder, carbon dioxide. 
EXPLOSION      
 
EXPOSURE See EFFECTS OF LONG-TERM OR REPEATED EXPOSURE.  AVOID ALL CONTACT! AVOID EXPOSURE OF (PREGNANT) WOMEN!   
Inhalation   Use local exhaust or breathing protection.  Fresh air, rest. 
Skin MAY BE ABSORBED!  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse and then wash skin with water and soap. 
Eyes   Wear safety goggles or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion   Do not eat, drink, or smoke during work.  Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
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 covered sealable containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations.   
EC Classification
Symbol: T, N; R: 45-46-60-61-43-50/53; S: 53-45-60-61 
UN Classification
 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
  Separated from strong oxidants. 

IMPORTANT DATA
Physical State; Appearance
PALE YELLOW CRYSTALS. 

Physical dangers
 

Chemical dangers
Reacts with strong oxidants. This generates 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; Skin absorption (H); (DFG 2007). 

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. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 496°C
Melting point: 178.1°C
Density: 1.4 g/cm³
Solubility in water, g/100ml at <0.1°C: (none)
Vapour pressure: negligible
Octanol/water partition coefficient as log Pow: 6.04  
The substance is very toxic to aquatic organisms. Bioaccumulation of this chemical may occur in fish, plants and molluscs. The substance may cause long-term effects in the aquatic environment. 

NOTES
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. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations
       Benzo(a)Pyrene (IARC Summary & Evaluation, Volume 3, 1973)