ICSC 0603 - HELIUM

HELIUM	ICSC: 0603 (August 2003)

CAS #: 7440-59-7

UN #: 1963

EC Number: 231-168-5

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Not combustible. Heating will cause rise in pressure with risk of bursting.		In case of fire in the surroundings, use appropriate extinguishing media. In case of fire: keep cylinder cool by spraying with water.


	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Dizziness. Lethargy. Headache. Suffocation.	Use ventilation.	Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.
Skin	ON CONTACT WITH LIQUID: FROSTBITE.	Cold-insulating gloves. Protective clothing.	ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer for medical attention .
Eyes	ON CONTACT WITH LIQUID: FROSTBITE.	Wear safety goggles or face shield.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Ventilation. NEVER direct water jet on liquid. Personal protection: self-contained breathing apparatus.	According to UN GHS Criteria Transportation UN Classification UN Hazard Class: 2.2
STORAGE
Fireproof if in building. Keep in a well-ventilated room.
PACKAGING

HELIUM

ICSC: 0603

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance ODOURLESS COLOURLESS REFRIGERATED LIQUEFIED GAS. Physical dangers The gas is lighter than air. Chemical dangers	Formula: He Atomic mass: 4.003 Boiling point: -268.9°C Melting point: -272.2°C Solubility in water, ml/100ml at 20°C: 0.86 Relative vapour density (air = 1): 0.14

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
ODOURLESS COLOURLESS REFRIGERATED LIQUEFIED GAS.

Physical dangers
The gas is lighter than air.

Chemical dangers

Formula: He
Atomic mass: 4.003
Boiling point: -268.9°C
Melting point: -272.2°C
Solubility in water, ml/100ml at 20°C: 0.86
Relative vapour density (air = 1): 0.14

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation. Effects of short-term exposure The liquid may cause frostbite. Asphyxiation.	Inhalation risk On loss of containment this substance can cause suffocation by lowering the oxygen content of the air in confined areas. Effects of long-term or repeated exposure

EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The liquid may cause frostbite. Asphyxiation.

Inhalation risk
On loss of containment this substance can cause suffocation by lowering the oxygen content of the air in confined areas.

Effects of long-term or repeated exposure

OCCUPATIONAL EXPOSURE LIMITS

ENVIRONMENT

NOTES
UN number 1046 is for helium, compressed. High concentrations in the air cause a deficiency of oxygen with the risk of unconsciousness or death. Check oxygen content before entering area.

ADDITIONAL INFORMATION

EC Classification

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    See Also:
       Toxicological Abbreviations
       HELIUM (JECFA Evaluation)