ICSC 0475 - ETHYLENE

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ETHYLENE

ICSC: 0475
_{March 1996}

Ethene

CAS No: 74-85-1
RTECS No: KU5340000
UN No: 1962
EC No: 601-010-00-3

(cylinder)
C₂H₄ / CH₂=CH₂
Molecular mass: 28.0

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.	F+ Symbol R: 12-67 S: (2-)9-16-33-46 UN Hazard Class: 2.1

EMERGENCY RESPONSE	SAFE STORAGE
Transport Emergency Card: TEC (R)-20S1962 NFPA Code: H1; F4; R2	Fireproof. Separated from strong oxidants.

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 600°C. 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	ENVIRONMENTAL DATA
Boiling point: -104°C Melting point: -169.2°C Solubility in water: none Vapour pressure, kPa at 15°C: 8100 Relative vapour density (air = 1): 0.98 Flash point: Flammable Gas Auto-ignition temperature: 490°C Explosive limits, vol% in air: 2.7-36.0

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.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004

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