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NIOSH

5-ETHYLIDENE-2-NORBORNENE (stabilized)

ICSC: 0473

ENB
5-Ethylidenebicyclo(2,2,1)hep-2-ene
Ethylidene norbornene
C9H12
Molecular mass: 120.2
ICSC # 0473 		CAS # 16219-75-3
RTECS # RB9450000
UN # 1992
March 26, 1999 Validated

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 38°C explosive vapour/air mixtures may be formed.
Above 38°C 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

STORAGE

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.
Fireproof. Separated from strong oxidants, food and feedstuffs . Cool. Keep under inert gas. Store only if stabilized.
Airtight. Do not transport with food and feedstuffs.
UN Hazard Class: 3
UN Subsidiary Risks: 6.1
UN Packing Group: III
ICSC: 0473 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

5-ETHYLIDENE-2-NORBORNENE (stabilized)

ICSC: 0473

I

M

P

O

R

T

A

N

T


D

A

T

A

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).
OSHA PEL†: none
NIOSH REL: C 5 ppm (25 mg/m3)
NIOSH IDLH: N.D. See: IDLH INDEX


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 20°C.

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: 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

ENVIRONMENTAL
DATA


N O T E S

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.
Transport Emergency Card: TEC (R)-30GFT1-III

ADDITIONAL INFORMATION



ICSC: 0473 5-ETHYLIDENE-2-NORBORNENE (stabilized)
(C) IPCS, CEC, 1994
IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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