ICSC 0017 - 1,3-BUTADIENE

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1,3-BUTADIENE	ICSC: 0017 (April 2017)
Divinyl Vinylethylene Biethylene Erythrene Pyrrolylene Buta-1,3-diene

CAS #: 106-99-0

UN #: 1010 (stabilized)

EC Number: 203-450-8

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Extremely flammable. Gas/air mixtures are explosive.	NO open flames, NO sparks and NO smoking. Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent build-up of electrostatic charges (e.g., by grounding) if in liquid state.	Shut off supply; if not possible and no risk to surroundings, let the fire burn itself out. In other cases extinguish with water spray, powder, carbon dioxide, foam. In case of fire: keep cylinder cool by spraying with water.

AVOID ALL CONTACT!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough. Headache. Drowsiness.	Use closed system and ventilation.	Fresh air, rest. Refer for medical attention.
Skin	ON CONTACT WITH LIQUID: FROSTBITE.	Cold-insulating gloves.	ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer for medical attention .
Eyes	ON CONTACT WITH LIQUID: FROSTBITE.	Wear face shield.	ON FROSTBITE: rinse with plenty of water. Refer immediately for medical attention.
Ingestion		Do not eat, drink, or smoke during work.

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Remove all ignition sources. Evacuate danger area! Consult an expert! Personal protection: self-contained breathing apparatus. Shut off cylinder if possible. Isolate the area until the gas has dispersed. NEVER direct water jet on liquid.	According to UN GHS Criteria DANGER Contains gas under pressure; may explode if heated Extremely flammable gas May cause cancer May cause genetic defects Transportation UN Classification UN Hazard Class: 2.1
STORAGE
Store only if stabilized. Fireproof. Cool. Keep in a well-ventilated room. Separated from incompatible materials and food and feedstuffs. See Chemical Dangers. See Physical Dangers. Refer to the manufacturer's instructions for proper storage conditions.
PACKAGING
Do not transport with food and feedstuffs. Transport only if stabilized.

1,3-BUTADIENE

ICSC: 0017

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS COMPRESSED LIQUEFIED GAS WITH CHARACTERISTIC ODOUR. Physical dangers The gas is heavier than air and may travel along the ground; distant ignition possible. As a result of flow, agitation, etc., electrostatic charges can be generated. Vapours are uninhibited and may polymerize, causing blockage of vents. Chemical dangers The substance can form peroxides on exposure to air, initiating explosive polymerization. The substance may polymerize due to warming. This generates fire or explosion hazard. Decomposes explosively on rapid heating under pressure. Reacts vigorously with oxidants and many other substances. This generates fire and explosion hazard. Attacks many plastics and some forms of rubber.	Formula: C₄H₆ / CH₂=(CH)₂=CH₂ Molecular mass: 54.1 Boiling point: -4°C Melting point: -109°C Relative density (water = 1): 0.6 Solubility in water, g/100ml: 0.1 (none) Vapour pressure, kPa at 20°C: 245 Relative vapour density (air = 1): 1.9 Flash point: -76°C c.c. Auto-ignition temperature: 414°C Explosive limits, vol% in air: 1.1-16.3 Octanol/water partition coefficient as log Pow: 1.99

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS COMPRESSED LIQUEFIED GAS WITH CHARACTERISTIC ODOUR.

Physical dangers
The gas is heavier than air and may travel along the ground; distant ignition possible. As a result of flow, agitation, etc., electrostatic charges can be generated. Vapours are uninhibited and may polymerize, causing blockage of vents.

Chemical dangers
The substance can form peroxides on exposure to air, initiating explosive polymerization. The substance may polymerize due to warming. This generates fire or explosion hazard. Decomposes explosively on rapid heating under pressure. Reacts vigorously with oxidants and many other substances. This generates fire and explosion hazard. Attacks many plastics and some forms of rubber.

Formula: C₄H₆ / CH₂=(CH)₂=CH₂
Molecular mass: 54.1
Boiling point: -4°C
Melting point: -109°C
Relative density (water = 1): 0.6
Solubility in water, g/100ml: 0.1 (none)
Vapour pressure, kPa at 20°C: 245
Relative vapour density (air = 1): 1.9
Flash point: -76°C c.c.
Auto-ignition temperature: 414°C
Explosive limits, vol% in air: 1.1-16.3
Octanol/water partition coefficient as log Pow: 1.99

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation. Effects of short-term exposure The substance at very high concentrations is irritating to the eyes and respiratory tract. Rapid evaporation of the liquid may cause frostbite. Inhalation of high concentrations may cause depression of the central nervous system.	Inhalation risk A harmful concentration of this gas in the air will be reached very quickly on loss of containment. Effects of long-term or repeated exposure The substance may have effects on the bone marrow. This substance is carcinogenic to humans. May cause heritable genetic damage to human germ cells.

EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation.

Effects of short-term exposure
The substance at very high concentrations is irritating to the eyes and respiratory tract. Rapid evaporation of the liquid may cause frostbite. Inhalation of high concentrations may cause depression of the central nervous system.

Inhalation risk
A harmful concentration of this gas in the air will be reached very quickly on loss of containment.

Effects of long-term or repeated exposure
The substance may have effects on the bone marrow. This substance is carcinogenic to humans. May cause heritable genetic damage to human germ cells.

OCCUPATIONAL EXPOSURE LIMITS
TLV: 2 ppm as TWA; A2 (suspected human carcinogen). EU-OEL: 2.2 mg/m³, 1 ppm as TWA. MAK: carcinogen category: 1; germ cell mutagen group: 2

ENVIRONMENT
Environmental effects from the substance have not been investigated adequately.

NOTES
The odour warning when the exposure limit value is exceeded is insufficient. Turn leaking cylinder with the leak up to prevent escape of gas in liquid state.

ADDITIONAL INFORMATION

EC Classification
Symbol: F+, T; R: 45-46-12; S: 53-45; Note: D

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