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5-ETHYLIDENE-2-NORBORNENE (stabilized)ICSC: 0473
ENB
5-Ethylidenebicyclo(2,2,1)hept-2-ene
Ethylidene norbornene
March 1999
CAS #: 16219-75-3
UN #: 1992
EC Number: 240-347-7

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Flammable.  Above 38°C explosive vapour/air mixtures may be formed.  NO open flames, NO sparks and NO smoking.  Above 38°C use a closed system, ventilation and explosion-proof electrical equipment. Prevent build-up of electrostatic charges (e.g., by grounding).  Use powder, AFFF, foam, carbon dioxide. NO water.  In case of fire: keep drums, etc., cool by spraying with water. Combat fire from a sheltered position. 

   
  SYMPTOMS PREVENTION FIRST AID
Inhalation Confusion. Cough. Headache. Shortness of breath. Sore throat.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin Redness. Pain.  Protective gloves.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention . 
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 Nausea. Vomiting.  Do not eat, drink, or smoke during work.  Rinse mouth. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: self-contained breathing apparatus. 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
UN Hazard Class: 3; UN Subsidiary Risks: 6.1; UN Pack Group: III 

STORAGE
Fireproof. Separated from strong oxidants and food and feedstuffs. Cool. Keep under inert gas. Store only if stabilized. 
PACKAGING
Airtight.
Do not transport with food and feedstuffs. 
5-ETHYLIDENE-2-NORBORNENE (stabilized) ICSC: 0473
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
WHITE-TO-COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
As a result of flow, agitation, etc., electrostatic charges can be generated. 

Chemical dangers
The substance may polymerize. Decomposes on burning. This produces acrid smoke and irritating fumes. Reacts with strong oxidants. 

Formula: C9H12
Molecular mass: 120.2
Boiling point: 148°C
Melting point: -80°C
Relative density (water = 1): 0.9
Solubility in water: none
Vapour pressure, Pa at 20°C: 560
Relative vapour density (air = 1): 4.1
Flash point: 38°C o.c. 


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. If this liquid is swallowed, aspiration into the lungs may result in chemical pneumonitis. 

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

Effects of long-term or repeated exposure
The substance may have effects on the liver and kidneys. 


OCCUPATIONAL EXPOSURE LIMITS
TLV: 2 ppm as TWA; 4 ppm as STEL 

ENVIRONMENT
 

NOTES
The occupational exposure limit value should not be exceeded during any part of the working exposure.
An added stabilizer or inhibitor can influence the toxicological properties of this substance; consult an expert. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations