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ETHYLENE ICSC: 0475
Date of Peer Review: March 1996

Ethene
(cylinder)
CAS # 74-85-1 C2H4 / CH2=CH2
RTECS # KU5340000 Molecular mass: 28.0
UN # 1962
EC Index # 601-010-00-3
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Extremely flammable.
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 water spray.
EXPLOSION Gas/air mixtures are explosive.
Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent build-up of electrostatic charges (e.g., by grounding). Use non-sparking handtools.
In case of fire: keep cylinder cool by spraying with water. Combat fire from a sheltered position.
EXPOSURE


Inhalation Drowsiness. Unconsciousness.
Ventilation.
Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.
Skin


Eyes


Ingestion


SPILLAGE DISPOSAL PACKAGING & LABELLING
Evacuate danger area! Ventilation. Remove all ignition sources and turn off gas at source if possible. Personal protection: chemical protection suit including self-contained breathing apparatus.
EU Classification
Symbol: F+
R: 12-67
S: (2-)-9-16-33-46
UN Classification
UN Hazard Class: 2.1

EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-20S1962
NFPA Code: H1; F4; R2;
Fireproof. Separated from strong oxidants.
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
ETHYLENE ICSC: 0475
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS COMPRESSED GAS, WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:
The gas is lighter than air. As a result of flow, agitation, etc., electrostatic charges can be generated.

CHEMICAL DANGERS:
The substance may polymerize to form aromatic compounds under the influence of temperatures above 600C. Reacts with strong oxidants causing fire and explosion hazard.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 200 ppm as TWA; A4 (not classifiable as a human carcinogen); (ACGIH 2005).
MAK: Carcinogen category: 3B; (DFG 2005).
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:
Exposure could cause lowering of consciousness.

PHYSICAL PROPERTIES
Boiling point: -104C
Melting point: -169.2C
Solubility in water: none
Vapour pressure, kPa at 15C: 8100
Relative vapour density (air = 1): 0.98
Flash point: Flammable Gas
Auto-ignition temperature: 490C
Explosive limits, vol% in air: 2.7-36.0
ENVIRONMENTAL DATA

NOTES
High concentrations in the air cause a deficiency of oxygen with the risk of unconsciousness or death. Check oxygen content before entering area. Card has been partly updated in October 2004 and 2005. See sections Occupational Exposure Limits, EU classification, 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