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NITROGEN TRIFLUORIDE ICSC: 1234
Date of Peer Review: October 2004

Nitrogen fluoride
Trifluoroamine
Trifluoroammonia
Perfluoroammonia
(cylinder)
CAS # 7783-54-2 NF3
RTECS # QX1925000 Molecular mass: 71.0
UN # 2451
EC Index #
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Not combustible but enhances combustion of other substances. Gives off irritating or toxic fumes (or gases) in a fire. Heating will cause rise in pressure with risk of bursting.
NO contact with flammable substances. NO contact with reducing agents.
In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION

In case of fire: keep cylinder cool by spraying with water.
EXPOSURE


Inhalation
Ventilation, local exhaust, or breathing protection.
Fresh air, rest.
Skin

Remove contaminated clothes.
Eyes
Safety goggles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion


SPILLAGE DISPOSAL PACKAGING & LABELLING
Ventilation. NEVER direct water jet on liquid. Personal protection: self-contained breathing apparatus.
EU Classification
UN Classification
UN Hazard Class: 2.2
UN Subsidiary Risks: 5.1

EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-20G1O
Fireproof if in building. Separated from combustible and reducing substances. Cool.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 2005

SEE IMPORTANT INFORMATION ON BACK
NITROGEN TRIFLUORIDE ICSC: 1234
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS GAS, WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:
The gas is heavier than air and may accumulate in lowered spaces causing a deficiency of oxygen.

CHEMICAL DANGERS:
The substance decomposes on heating producing toxic fumes including fluoride. The substance is a strong oxidant and reacts with combustible and reducing materials. Reacts violently with ammonia, carbon monoxide, diborane, hydrogen, hydrogen sulfide, methane or tetrafluorohydrazine causing explosion hazard. Attacks metal. The substance is decomposed by electric sparks.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 10 ppm as TWA; BEI issued; (ACGIH 2004).
MAK not established.
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation.

INHALATION RISK:
On loss of containment, a harmful concentration of this gas in the air will be reached very quickly.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the liver and kidneys. Repeated or prolonged inhalation exposure may cause fluorosis.
PHYSICAL PROPERTIES
Boiling point: -129C
Melting point: -208.5C
Relative density (water = 1): see Notes
Solubility in water: none
Relative density of the vapour/air-mixture at 20C (air = 1): 2.45
ENVIRONMENTAL DATA

NOTES
Density of the liquid at boiling point: 1.885 kg/l. The odour warning when the exposure limit value is exceeded is insufficient. Methemoglobinemia has been observed in animals, but relevance to humans is unclear. Turn leaking cylinder with the leak up to prevent escape of gas in liquid state. Wear protective equipment during this operation. Check oxygen content before entering area. High concentrations in the air cause a deficiency of oxygen with the risk of unconsciousness or death.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 2005