ICSC 1057 - HEXAFLUOROACETONE

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HEXAFLUOROACETONE	ICSC: 1057 (April 2000)
1,1,1,3,3,3-Hexafluoro-2-propanone Perfluoroacetone

CAS #: 684-16-2

UN #: 2420

EC Number: 211-676-3

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.		In case of fire in the surroundings, use appropriate extinguishing media. In case of fire: keep cylinder cool by spraying with water.

STRICT HYGIENE! AVOID EXPOSURE OF (PREGNANT) WOMEN!
	SYMPTOMS	PREVENTION	FIRST AID
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	CLASSIFICATION & LABELLING
Evacuate danger area! Consult an expert! Personal protection: complete protective clothing including self-contained breathing apparatus. Ventilation. Remove gas with fine water spray.	According to UN GHS Criteria Transportation UN Classification UN Hazard Class: 2.3; UN Subsidiary Risks: 8
STORAGE
Fireproof if in building. Cool.
PACKAGING

HEXAFLUOROACETONE

ICSC: 1057

PHYSICAL & CHEMICAL INFORMATION
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.	Formula: C₃F₆O / CF₃COCF₃ Molecular mass: 166.0 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

PHYSICAL & CHEMICAL INFORMATION

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.

Formula: C₃F₆O / CF₃COCF₃
Molecular mass: 166.0
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

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

EXPOSURE & HEALTH EFFECTS

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

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.

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
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.

OCCUPATIONAL EXPOSURE LIMITS
TLV: 0.1 ppm as TWA; (skin)

ENVIRONMENT

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

ADDITIONAL INFORMATION

EC Classification

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