IPCS INCHEM Home
STYRENE OXIDE
ICSC: 1201
Peer-Review Status: 04.04.2006 Validated
(Epoxyethyl)benzene
1,2-Epoxyethylbenzene
Styrene-7,8-oxide
Phenylethylene oxide
Phenyl oxirane
Styrene epoxide
Styryl oxide 
CAS #: 96-09-3 RTECS #: CZ9625000
EC #: 603-084-00-2
EINECS #: 202-476-7
    Formula: C8H8O / C6H5CHCH2O
Molecular mass: 120.2

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible.  NO open flames. NO contact with acids or bases.  Use powder, foam, carbon dioxide. 
EXPLOSION Above 76°C explosive vapour/air mixtures may be formed.  Above 76°C use a closed system and ventilation.  In case of fire: keep drums, etc., cool by spraying with water. NO direct contact with water. 
 
EXPOSURE   AVOID ALL CONTACT!   
Inhalation Dizziness. Drowsiness. Unconciousness. Vomiting.  Use local exhaust or breathing protection.  Fresh air, rest. 
Skin Redness. Pain.  Protective clothing. Protective gloves.  Remove contaminated clothes. Rinse and then wash skin with water and soap. 
Eyes Redness. Pain.  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 Abdominal pain. Further see Inhalation.  Do not eat, drink, or smoke during work. Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: chemical protection suit including self-contained breathing apparatus. Collect leaking liquid in covered containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations.  Do not transport with food and feedstuffs. 
EC Classification
Symbol: T; R: 45-21-36; S: 53-45; Note: E 
UN Classification
 
GHS Classification
Signal: Danger
Combustible liquid
Harmful if swallowed
Causes skin irritation
Causes eye irritation
Suspected of causing genetic defects
May cause cancer 
excl mark;warncancer;health haz

EMERGENCY RESPONSE SAFE STORAGE
NFPA Code: H2; F2; R0.  Separated from acids, bases and food and feedstuffs. Ventilation along the floor. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS-TO-PALE-YELLOW LIQUID. 

Physical dangers
No data. 

Chemical dangers
The substance may polymerize due to heating above the flash point, under the influence of acids and bases. 

Occupational exposure limits
TLV (NOT-ESTABLISHED):. 

Routes of exposure
The substance can be absorbed into the body by inhalation, through the skin and by ingestion. 

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
The substance is irritating to the eyes and skin. The substance may cause effects on the central nervous system. Exposure could cause lowering of consciousness. 

Effects of long-term or repeated exposure
This substance is probably carcinogenic to humans. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 194°C
Melting point: -36.7°C
Relative density (water = 1): 1.05
Solubility in water, g/100ml at 25°C: 0.3 (poor)
Vapour pressure, Pa at 20°C: 40
Relative vapour density (air = 1): 4.30
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.001
Flash point: 76°C c.c.
Auto-ignition temperature: 498°C
Explosive limits, vol% in air: 1.1-22
Octanol/water partition coefficient as log Pow: 1.61  
 

NOTES
Do NOT take working clothes home.
Card has been partially updated in January 2008: see Fire fighting. 

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