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5-ETHYLIDENE-2-NORBORNENE (stabilized) ICSC: 0473
Date of Peer Review: March 1999

ENB
5-Ethylidenebicyclo(2,2,1)hep-2-ene
Ethylidene norbornene
CAS # 16219-75-3 C9H12
RTECS # RB9450000 Molecular mass: 120.2
UN # 1992
EC Index #
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Flammable.
NO open flames, NO sparks, and NO smoking.
Powder, AFFF, foam, carbon dioxide. NO water.
EXPLOSION Above 38C explosive vapour/air mixtures may be formed.
Above 38C use a closed system, ventilation, and explosion-proof electrical equipment. Prevent build-up of electrostatic charges (e.g., by grounding).
In case of fire: keep drums, etc., cool by spraying with water. Combat fire from a sheltered position.
EXPOSURE


Inhalation Confusion. Cough. Headache. Shortness of breath. Sore throat.
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.
Safety spectacles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion Nausea. Vomiting.
Do not eat, drink, or smoke during work.
Rinse mouth. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Personal protection: self-contained breathing apparatus.
Airtight. Do not transport with food and feedstuffs.
EU Classification
UN Classification
UN Hazard Class: 3
UN Subsidiary Risks: 6.1
UN Pack Group: III
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-30GFT1-III
Fireproof. Separated from strong oxidants, food and feedstuffs. Cool. Keep under inert gas. Store only if stabilized.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 2005

SEE IMPORTANT INFORMATION ON BACK
5-ETHYLIDENE-2-NORBORNENE (stabilized) ICSC: 0473
IMPORTANT DATA
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. The substance decomposes on burning producing acrid smoke and irritating fumes. Reacts with strong oxidants.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 5 ppm (Ceiling value); (ACGIH 2004).
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation and by ingestion.

INHALATION RISK:
A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20C.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance irritates the eyes, the skin and the respiratory tract. If this liquid is swallowed, aspiration into the lungs may result in chemical pneumonitis.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the liver and kidneys.
PHYSICAL PROPERTIES
Boiling point: 148C
Melting point: -80C
Relative density (water = 1): 0.9
Solubility in water: none
Vapour pressure, Pa at 20C: 560
Relative vapour density (air = 1): 4.1
Flash point: 38C o.c
ENVIRONMENTAL DATA

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. Card has been partly updated in October 2005. See section Emergency Response.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 2005