International Chemical Safety Cards

n-BUTENE ICSC: 0396

n-BUTENE
n-Butylene
1-Butene
Ethylethylene
(cylinder)
C4H8/CH3CH2CH=CH2
Molecular mass: 56.1
CAS # 106-98-9
RTECS # EM2893000
ICSC # 0396
UN # 1012
EC # 601-012-00-4
TYPES OF
HAZARD/
EXPOSURE 		ACUTE HAZARDS/
SYMPTOMS 		PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Flammable gas.
NO open flames, NO sparks, and NO smoking.
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.
EXPLOSION Gas/air mixtures are explosive.
Closed system, ventilation, explosion-proof electrical equipment and lighting.
In case of fire: keep cylinder cool by spraying with water. Fire fighters should wear complete protective clothing including self-contained breathing apparatus.
EXPOSURE


  • INHALATION
    		• Dizziness, laboured breathing.
    		Ventilation.
    		Fresh air, rest, artificial respiration if indicated, and refer for medical attention.
  • SKIN
    		• ON CONTACT WITH LIQUID: FROSTBITE.

    		ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer for medical attention.
  • EYES
    		• ON CONTACT WITH LIQUID: FROSTBITE.

    		First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
  • INGESTION

    		• Do not eat, drink, or smoke during work.

    SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
    Evacuate danger area! Consult an expert! Ventilation. Remove all sources of ignition (extra personal protection: complete protective clothing including self-contained breathing apparatus).
    		Fireproof. Store outside or in a separate well-ventilated building. Separated from strong oxidants. Cool.

    F symbol
    R: 13
    S: 9-16-33
    UN Hazard Class: 2
    UN Subsidiary Risks: 3
    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 0396 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993 No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and IDLH values.

    International Chemical Safety Cards

    n-BUTENE ICSC: 0396

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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:
     May explode on heating. Reacts violently with oxygen and oxidants, causing fire and explosion hazard.

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
     TLV not established.


    		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:
     The liquid may cause frostbite. Exposure to extremely high concentrations could cause lowering of consciousness.

    EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
    PHYSICAL
    PROPERTIES
    Boiling point: -6°C
    Melting point: -185°C
    Relative density (water = 1): 0.595 at 20°C (liquid)
    Solubility in water: None
    		 Relative vapour density (air = 1): 1.9
    Flash point: Flammable Gas
    Auto-ignition temperature: 371-385°C
    Explosive limits, vol% in air: 1.6-10.0
    ENVIRONMENTAL
    DATA
    NOTES
    High concentrations in the air cause a deficiency of oxygen with the risk of unconsciousness or death.
    Transport Emergency Card: TEC (R)-500
    NFPA Code: H 1; F 4; R 0;
    ADDITIONAL INFORMATION


    ICSC: 0396 n-BUTENE
    © IPCS, CEC, 1993
    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 IDLH values.