|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, powder, carbon dioxide.|
|EXPLOSION||Gas/air mixtures are explosive.||Closed system, ventilation, explosion-proof electrical equipment and lighting. Use non-sparking handtools.||In case of fire: keep cylinder cool by spraying with water. Combat fire from a sheltered position.|
|Inhalation||Suffocation. See Notes.||Use ventilation. Use breathing protection.||Fresh air, rest. Artificial respiration may be needed. 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 safety goggles.||First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.|
|PACKAGING & LABELLING|
|Evacuate danger area! Personal protection: self-contained breathing apparatus. Consult an expert! Ventilation. Remove all ignition sources. NEVER direct water jet on liquid.||
Symbol: F+; R: 12; S: (2)-9-16-33
UN Hazard Class: 2.1
|EMERGENCY RESPONSE||SAFE STORAGE|
Transport Emergency Card: TEC (R)-20G1F.
NFPA Code: H1; F4; R0.
|Fireproof. Cool. Ventilation along the floor and ceiling.|
Physical State; Appearance
COLOURLESS ODOURLESS COMPRESSED OR LIQUEFIED GAS.
Occupational exposure limits
Routes of exposure
The substance can be absorbed into the body by inhalation.
Effects of short-term exposure
Effects of long-term or repeated exposure
|PHYSICAL PROPERTIES||ENVIRONMENTAL DATA|
Boiling point: -161°C
Melting point: -183°C
Solubility in water, ml/100ml at 20°C: 3.3
Relative vapour density (air = 1): 0.6
Flash point: Flammable gas
Auto-ignition temperature: 537°C
Explosive limits, vol% in air: 5-15
Octanol/water partition coefficient as log Pow: 1.09
Density of the liquid at boiling point: 0.42 kg/l.
High concentrations in the air cause a deficiency of oxygen with the risk of unconsciousness or death.
Check oxygen content before entering area.
Turn leaking cylinder with the leak up to prevent escape of gas in liquid state.
After use for welding, turn valve off; regularly check tubing, etc., and test for leaks with soap and water.
The measures mentioned in section PREVENTION are applicable to production, filling of cylinders, and storage of the gas.
Other UN number: 1972 (refridgerated liquid), Hazard class: 2.1.
Card has been partly updated in October 2005.
See section Emergency Response.
See Also: Toxicological Abbreviations