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DIVINYLBENZENE (MIXED ISOMERS)ICSC: 0885
Vinylstyrene
DVB
November 1997
CAS #: 1321-74-0
EC Number: 215-325-5

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible. Heating will cause rise in pressure with risk of bursting.  Above 76°C explosive vapour/air mixtures may be formed.  NO open flames.  Above 76°C use a closed system and ventilation.  Use powder, foam, carbon dioxide.  In case of fire: keep drums, etc., cool by spraying with water. 

 PREVENT GENERATION OF MISTS!  
  SYMPTOMS PREVENTION FIRST AID
Inhalation Cough. Sore throat.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. 
Skin Redness.  Protective gloves.  Remove contaminated clothes. Rinse skin with plenty of water or shower. 
Eyes Redness. Pain.  Wear safety spectacles.  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. Wash hands before eating.  Rinse mouth. Do NOT induce vomiting. Rest. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

 

Transportation
UN Classification
 

STORAGE
Separated from oxidants. Cool. Store only if stabilized. 
PACKAGING
 
DIVINYLBENZENE (MIXED ISOMERS) ICSC: 0885
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
 

Chemical dangers
The substance may polymerize due to heating. This generates fire or explosion hazard. Reacts violently with oxidants. 

Formula: C10H10 / C6H4(CH=CH2)2
Molecular mass: 130.20
Boiling point: 195°C
Melting point: -66.9 - -52°C
Relative density (water = 1): 0.9
Solubility in water: none
Vapour pressure, Pa at 32.7°C: 133
Relative vapour density (air = 1): 4.48
Flash point: 76°C o.c.
Auto-ignition temperature: 500°C
Explosive limits, vol% in air: 1.1-6.2
Octanol/water partition coefficient as log Pow: 3.59 (estimated) 


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract. 

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 long-term or repeated exposure
Repeated or prolonged contact with skin may cause dermatitis. 


OCCUPATIONAL EXPOSURE LIMITS
TLV: 10 ppm as TWA 

ENVIRONMENT
 

NOTES
The commercial form of vinylbenzene contains the three isomeric forms but the meta isomer predominates.
Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken.
An added stabilizer or inhibitor can influence the toxicological properties of this substance, consult an expert.
See ICSC 0073. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations