ICSC 1281 - 1,1,1,2-TETRAFLUOROETHANE

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1,1,1,2-TETRAFLUOROETHANE	ICSC: 1281 (March 1998)
HFC 134a

CAS #: 811-97-2

UN #: 3159

EC Number: 212-377-0

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.	NO open flames. NO contact with hot surfaces.	In case of fire in the surroundings, use appropriate extinguishing media. In case of fire: keep cylinder cool by spraying with water.


	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Dizziness. Drowsiness. Lethargy.	Use local exhaust or breathing protection.	Fresh air, rest. Refer for medical attention.
Skin	ON CONTACT WITH LIQUID: FROSTBITE.	Cold-insulating gloves.	ON FROSTBITE: rinse with plenty of water, do NOT remove clothes.
Eyes		Wear safety goggles.
Ingestion

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
NEVER direct water jet on liquid. Do NOT let this chemical enter the environment. 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. Keep in a well-ventilated room.
PACKAGING

1,1,1,2-TETRAFLUOROETHANE

ICSC: 1281

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COMPRESSED LIQUEFIED GAS WITH CHARACTERISTIC ODOUR. Physical dangers Chemical dangers Decomposes on contact with hot surfaces or flames. This produces toxic and corrosive fumes.	Formula: C₂H₂F₄ Molecular mass: 102.03 Boiling point: -26°C Melting point: -101°C Solubility in water: none Vapour pressure, kPa at 25°C: 630 Relative vapour density (air = 1): 3.5 Octanol/water partition coefficient as log Pow: 1.06

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COMPRESSED LIQUEFIED GAS WITH CHARACTERISTIC ODOUR.

Physical dangers

Chemical dangers
Decomposes on contact with hot surfaces or flames. This produces toxic and corrosive fumes.

Formula: C₂H₂F₄
Molecular mass: 102.03
Boiling point: -26°C
Melting point: -101°C
Solubility in water: none
Vapour pressure, kPa at 25°C: 630
Relative vapour density (air = 1): 3.5
Octanol/water partition coefficient as log Pow: 1.06

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation. Effects of short-term exposure Rapid evaporation of the liquid may cause frostbite. The substance may cause effects on the central nervous system and cardiovascular system. This may result in cardiac disorders.	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

EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
Rapid evaporation of the liquid may cause frostbite. The substance may cause effects on the central nervous system and cardiovascular system. This may result in cardiac disorders.

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
MAK: 4200 mg/m³, 1000 ppm; peak limitation category: II(8); pregnancy risk group: C

ENVIRONMENT
This substance does enter the environment under normal use. Great care, however, should be taken to avoid any additional release, for example through inappropriate disposal.

NOTES
Do NOT use in the vicinity of a fire or a hot surface, or during welding. Turn leaking cylinder with the leak up to prevent escape of gas in liquid state.

ADDITIONAL INFORMATION

EC Classification

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