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HEXAFLUOROACETONE
ICSC: 1057
Peer-Review Status: 10.04.2000 Validated
1,1,1,3,3,3-Hexafluoro-2-propanone
Perfluoroacetone 
CAS #: 684-16-2 RTECS #: UC2450000
UN #: 2420
EINECS #: 211-676-3
    Formula: C3F6O / CF3COCF3
Molecular mass: 166.0

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.    In case of fire in the surroundings, use appropriate extinguishing media. 
EXPLOSION     In case of fire: keep cylinder cool by spraying with water. 
 
EXPOSURE   STRICT HYGIENE! AVOID EXPOSURE OF (PREGNANT) WOMEN!   
Inhalation Cough. Sore throat. Burning sensation. Laboured breathing. Shortness of breath. Symptoms may be delayed. See Notes.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention. 
Skin MAY BE ABSORBED! Redness. Pain. ON CONTACT WITH LIQUID: FROSTBITE.  Cold-insulating gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention . ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. 
Eyes Redness. Pain.  Wear safety spectacles, face shield or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion      

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Personal protection: complete protective clothing including self-contained breathing apparatus. Ventilation. Remove gas with fine water spray.   
EC Classification
 
UN Classification
UN Hazard Class: 2.3; UN Subsidiary Risks: 8 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-20G42.  Fireproof if in building. Cool. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS GAS WITH CHARACTERISTIC ODOUR. 

Physical dangers
The gas is heavier than air. 

Chemical dangers
Decomposes at 550°C. This produces toxic and corrosive fumes. Reacts vigorously with water and moisture. This produces a highly acidic hydrate. Attacks glass and most metals. 

Occupational exposure limits
 

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

Inhalation risk
A harmful concentration of this gas in the air will be reached very quickly on loss of containment. 

Effects of short-term exposure
The substance is severely irritating to the eyes, skin and respiratory tract. Inhalation of this gas may cause lung oedema. See Notes. Rapid evaporation of the liquid may cause frostbite. The effects may be delayed. Medical observation is indicated. 

Effects of long-term or repeated exposure
Animal tests show that this substance possibly causes malformations in human babies. Animal tests show that this substance possibly causes toxic effects upon human reproduction. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: -28°C
Melting point: -129°C
Solubility in water: reaction, releasing heat
Relative vapour density (air = 1): 5.7
Octanol/water partition coefficient as log Pow: 1.46  
 

NOTES
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 is therefore essential.
Immediate administration of an appropriate spray, by a doctor or a person authorized by him/her, should be considered. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations