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OXYGEN DIFLUORIDEICSC: 0818
April 2007
CAS #: 7783-41-7Oxygen fluoride
Fluorine monoxide
Difluorine monoxide
UN #: 2190
EINECS #: 231-996-7

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Not combustible but enhances combustion of other substances. Many reactions may cause fire or explosion. Heating will cause rise in pressure with risk of bursting.  Risk of fire and explosion. Mixture with water or water vapour explodes violently on spark ignition.      In case of fire in the surroundings, use appropriate extinguishing media.  In case of fire: keep cylinder cool by spraying with water. NO direct contact with water. Combat fire from a sheltered position. 

 AVOID ALL CONTACT!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Cough. Headache. Laboured breathing. Sore throat. See Notes.  Use closed system or ventilation.  Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer immediately for medical attention. 
Skin   See Notes.  Remove contaminated clothes. 
Eyes Watering of the eyes.  Wear safety goggles or eye protection in combination with breathing protection.  Rinse with plenty of water for several minutes (remove contact lenses if easily possible). Refer for medical attention. 
Ingestion   Do not eat, drink, or smoke during work.   

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Evacuate danger area! Consult an expert! Personal protection: gas-tight chemical protection suit including self-contained breathing apparatus. Ventilation. 

According to UN GHS Criteria

flam circlecylinder;gasskull;toxic
DANGER
May cause or intensify fire; oxidizer
Contains gas under pressure; may explode if heated
Fatal if inhaled  

Transportation
UN Classification
UN Hazard Class: 2.3; UN Subsidiary Risks: 5.1 and 8 

STORAGE
Fireproof. Keep in a well-ventilated room. Separated from incompatible materials. See Chemical Dangers. Cool. Dry. 
PACKAGING
 
OXYGEN DIFLUORIDE ICSC: 0818
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS COMPRESSED GAS WITH CHARACTERISTIC ODOUR. 

Physical dangers
The gas is heavier than air. 

Chemical dangers
The substance is a strong oxidant. It reacts with combustible and reducing materials. Reacts with many materials, for example non-metals such as red phosphorous and boron powder and porous materials such as silica, alumina and charcoal. Contact with steam causes explosion. 

Formula: OF2
Molecular mass: 54.0
Boiling point: -145°C
Melting point: -224°C
Solubility in water, ml/100ml at 0°C: 6.8 (reacts slowly)
Relative vapour density (air = 1): 1.9  


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
Lachrymation. The substance is irritating to the respiratory tract. Inhalation of this gas may cause lung oedema. See Notes. Exposure slightly above the OEL could cause death. 

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
 


Occupational exposure limits
TLV: 0.05 ppm as STEL 

ENVIRONMENT
 

NOTES
Do NOT take working clothes home.
The occupational exposure limit value should not be exceeded during any part of the working exposure.
The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential.
Immediate administration of an appropriate inhalation therapy by a doctor, or by an authorized person, should be considered. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations