ICSC 1199 - NITROGEN (LIQUIFIED)

NITROGEN (LIQUIFIED)	ICSC: 1199 (March 1999)
Liquid nitrogen Nitrogen (refrigerated liquid) Nitrogen (cryogenic liquid)

CAS #: 7727-37-9

UN #: 1977

EC Number: 231-783-9

	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.


	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Suffocation. See Notes.	Use ventilation.	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	Pain. Severe deep burns. Further see Skin.	Wear safety goggles.	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: chemical protection suit including 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
Special insulated cylinder.

NITROGEN (LIQUIFIED)

ICSC: 1199

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance ODOURLESS COLOURLESS EXTREMELY COLD LIQUID. Physical dangers The gas is heavier than air and may accumulate in lowered spaces causing a deficiency of oxygen. Chemical dangers	Formula: N₂ Molecular mass: 28.01 Boiling point: -196°C Melting point: -210°C Density (at the boiling point of the liquid): 0.808 kg/l Solubility in water: poor

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
ODOURLESS COLOURLESS EXTREMELY COLD LIQUID.

Physical dangers
The gas is heavier than air and may accumulate in lowered spaces causing a deficiency of oxygen.

Chemical dangers

Formula: N₂
Molecular mass: 28.01
Boiling point: -196°C
Melting point: -210°C
Density (at the boiling point of the liquid): 0.808 kg/l
Solubility in water: poor

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.	Inhalation risk On loss of containment this substance can cause serious risk of suffocation when in confined areas. See Notes. 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.

Inhalation risk
On loss of containment this substance can cause serious risk of suffocation when in confined areas. See Notes.

Effects of long-term or repeated exposure

OCCUPATIONAL EXPOSURE LIMITS

ENVIRONMENT

NOTES
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