n-Butylene
1-Butene
Ethylethylene
C4H8 / CH3CH2CH=CH2
Molecular mass: 56.1
ICSC # 0396
CAS # 106-98-9
UN # 1012
EC # 601-012-00-4
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Extremely flammable.
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NO open flames, NO sparks, and NO smoking.
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Shut off supply; if not possible and no risk to surroundings, let the fire burn itself out; in other cases extinguish with
powder, carbon dioxide.
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Explosion
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Gas/air mixtures are explosive.
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Closed system, ventilation, explosion-proof electrical equipment and lighting.
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In case of fire: keep cylinder cool by spraying with water.
Combat fire from a sheltered position.
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Exposure
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•Inhalation
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Suffocation.
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Ventilation.
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Fresh air, rest.
Artificial respiration may be needed.
Refer for medical attention.
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•Skin
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ON CONTACT WITH LIQUID: FROSTBITE.
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Cold-insulating gloves.
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ON FROSTBITE: rinse with plenty of water, do NOT remove clothes.
Refer for medical attention.
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•Eyes
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ON CONTACT WITH LIQUID: FROSTBITE.
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Face shield
or
eye protection in combination with breathing protection.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Do not eat, drink, or smoke during work.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Evacuate danger area!
Ventilation.
Remove all ignition sources.
Personal protection: complete protective clothing including self-contained breathing apparatus.
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Fireproof.
Cool.
Ventilation along the floor.
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Note: C
F+ symbol
R: 12
S: 2-9-16-33
UN Hazard Class: 2.1
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Important Data
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Physical State; Appearance:
ODOURLESS
COLOURLESS
COMPRESSED LIQUEFIED GAS
Physical Dangers:
The gas is heavier than air,
and may travel along the ground; distant ignition possible.
Chemical Dangers:
The substance may polymerize.
Reacts
violently with
oxygen
and
oxidants
causing fire and explosion hazard.
Occupational Exposure Limits:
TLV not established.
MAK not established.
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation.
Inhalation Risk:
On loss of containment this gas can cause suffocation by lowering the oxygen content of the air in confined areas.
Effects of Short-Term Exposure:
Rapid evaporation of the liquid may cause frostbite.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Boiling point: -6°C
Melting point: -185°C
Solubility in water:
none
Vapour pressure, kPa at 21°C: 464
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Relative vapour density (air = 1): 1.93
Flash point: Flammable Gas
Auto-ignition temperature: 385°C
Explosive limits, vol% in air: 1.6-10.0
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Environmental
Data
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N O T E S
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Health effects of exposure to the substance have not been investigated.
Check oxygen content before entering area.
Card has been partly updated in October 2005. See section Emergency Response.
Transport Emergency Card: TEC (R)-20S1012 or 20G2F
NFPA Code: H1; F4; R0;
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ADDITIONAL INFORMATION
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ICSC: 0396
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n-BUTENE
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(C) IPCS, CEC, 1994
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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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