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BENZOFURAN
ICSC: 0388
Peer-Review Status: 03.07.2002 Validated
2,3-Benzofuran
Coumarone 
CAS #: 271-89-6 RTECS #: DF6423800
UN #: 1993
EINECS #: 205-982-6
    Formula: C8H6O
Molecular mass: 118.1

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Flammable.  NO open flames, NO sparks and NO smoking.  Use foam, dry powder, carbon dioxide. 
EXPLOSION Above 56°C explosive vapour/air mixtures may be formed.  Above 56°C use a closed system, ventilation and explosion-proof electrical equipment.  In case of fire: keep drums, etc., cool by spraying with water. 
 
EXPOSURE   AVOID ALL CONTACT!   
Inhalation See Effects of long-term or repeated exposure.     
Skin      
Eyes      
Ingestion      

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Remove all ignition sources. Do NOT wash away into sewer. Do NOT let this chemical enter the environment. Collect leaking and spilled liquid in covered containers as far as possible.   
EC Classification
 
UN Classification
UN Hazard Class: 3; UN Subsidiary Risks: 3 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
  Fireproof. Well closed. Cool. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS OILY LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
 

Chemical dangers
The substance slowly polymerizes at ambient temperatures. The substance more rapidly polymerizes under the influence of heat and under the influence of acidic catalyst. 

Occupational exposure limits
TLV (NOT-ESTABLISHED):. 

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol. 

Inhalation risk
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C. 

Effects of short-term exposure
 

Effects of long-term or repeated exposure
The substance may have effects on the kidneys and liver. This substance is possibly carcinogenic to humans. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 174°C
Melting point: <-18°C
Relative density (water = 1): 1.09
Solubility in water: none
Vapour pressure, kPa at 25°C: 0.06
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00
Flash point: 56°C
Octanol/water partition coefficient as log Pow: 2.67  
The substance is harmful to aquatic organisms. It is strongly advised not to let the chemical enter into the environment. 

NOTES
Explosive limits are unknown in literature, although the substance is combustible and has a flash point < 61°C.
Do NOT take working clothes home.
Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken. 

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
       Benzofuran (IARC Summary & Evaluation, Volume 63, 1995)