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4-VINYL TOLUENEICSC: 0735
July 1997
CAS #: 622-97-9p-Methyl styrene
1-Ethenyl-4-methylbenzene
p-Vinyl toluene
UN #: 2618
EINECS #: 210-762-8

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Flammable. Heating will cause rise in pressure with risk of bursting.  Above 52.8°C explosive vapour/air mixtures may be formed.  NO open flames.  Above 52.8°C use a closed system, ventilation and explosion-proof electrical equipment.  Use water spray, foam, powder, carbon dioxide.  In case of fire: keep cylinder cool by spraying with water. 

 PREVENT GENERATION OF MISTS!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Dizziness. Drowsiness. Lethargy. Headache. Sore throat.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Artificial respiration may be needed. Refer for medical attention. 
Skin Dry skin. Redness.  Protective gloves.  Rinse and then wash skin with water and soap. 
Eyes Redness.  Wear safety spectacles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal pain. Nausea. Vomiting.  Do not eat, drink, or smoke during work.  Rinse mouth. Do NOT induce vomiting. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Ventilation. 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. Personal protection: self-contained breathing apparatus. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 3; UN Pack Group: III 

STORAGE
Separated from strong oxidants and strong acids. Well closed. Keep in a well-ventilated room. Store only if stabilized. 
PACKAGING
Marine pollutant. 
4-VINYL TOLUENE ICSC: 0735
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
The vapour is heavier than air. 

Chemical dangers
The substance may polymerize due to warming. This generates fire or explosion hazard. Reacts with strong oxidants and strong acids. 

Formula: CH3C6H4CH=CH2 / C9H10
Molecular mass: 118.2
Boiling point: 173°C
Melting point: -34°C
Relative density (water = 1): 0.897
Solubility in water: none
Vapour pressure, kPa at 20°C: <0.1
Relative vapour density (air = 1): 4.1
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00
Flash point: 52.8°C
Auto-ignition temperature: 515°C
Explosive limits, vol% in air: 1.1-5.3
Octanol/water partition coefficient as log Pow: 3.580  


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract. The substance may cause effects on the central nervous system. 

Inhalation risk
A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C. 

Effects of long-term or repeated exposure
Repeated or prolonged contact with skin may cause dermatitis. The substance defats the skin, which may cause dryness or cracking. The substance may have effects on the liver and kidneys. This may result in tissue lesions. 


Occupational exposure limits
MAK: 98 mg/m3, 20 ppm; peak limitation category: I(2); pregnancy risk group: D 

ENVIRONMENT
 

NOTES
Also consult ICSC 0514 Vinyl toluene isomer mixture. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations