ICSC 1776 - 2,3,3,3-TETRAFLUOROPROPENE

2,3,3,3-TETRAFLUOROPROPENE	ICSC: 1776 (April 2014)
2,3,3,3-Tetrafluoroprop-1-ene HFO-1234yf R1234YF

CAS #: 754-12-1

UN #: 3161

EC Number: 468-710-7

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Extremely flammable. Cylinder may explode in heat of fire. Gas/air mixtures are explosive.	NO open flames, NO sparks and NO smoking. Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent build-up of electrostatic charges (e.g., by grounding) if in liquid state.	Shut off supply; if not possible and no risk to surroundings, let the fire burn itself out. In other cases extinguish with carbon dioxide, dry powder. Combat fire from a sheltered position. In case of fire: keep cylinder cool by spraying with water.


	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Dizziness. Headache. Lethargy. Suffocation.	Use ventilation.	Fresh air, rest.
Skin	ON CONTACT WITH LIQUID: FROSTBITE.	Cold-insulating gloves.	ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer for medical attention .
Eyes	ON CONTACT WITH LIQUID: FROSTBITE.	Wear face shield or safety goggles.	ON FROSTBITE: rinse with plenty of water. Refer immediately for medical attention.
Ingestion		Do not eat, drink, or smoke during work.

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Evacuate danger area! Consult an expert! Turn off gas at source if possible. Ventilation. Remove gas with fine water spray. NEVER direct water jet on liquid. Personal protection: complete protective clothing including self-contained breathing apparatus.	According to UN GHS Criteria DANGER Extremely flammable gas Contains gas under pressure; may explode if heated Transportation UN Classification UN Hazard Class: 2.1
STORAGE
Fireproof. Cool. Keep in a well-ventilated room.
PACKAGING

2,3,3,3-TETRAFLUOROPROPENE

ICSC: 1776

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS LIQUEFIED GAS. Physical dangers The gas is heavier than air and may travel along the ground; distant ignition possible. Chemical dangers Decomposes on contact with hot surfaces or flames. This produces toxic fumes including hydrogen fluoride.	Formula: C₂H₂F₄ / CH₂CFCF₃ Molecular mass: 114.0 Boiling point: -29.4°C Density (for liquid): 1.1 g/cm³ Solubility in water, g/l at 24°C: 0.2 (very poor) Vapour pressure, kPa at 21.1°C: 600 Auto-ignition temperature: 405°C Relative vapour density (air = 1): 4 Explosive limits, vol% in air: 6.2 - 12.3 Octanol/water partition coefficient as log Pow: 2.15

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUEFIED GAS.

Physical dangers
The gas is heavier than air and may travel along the ground; distant ignition possible.

Chemical dangers
Decomposes on contact with hot surfaces or flames. This produces toxic fumes including hydrogen fluoride.

Formula: C₂H₂F₄ / CH₂CFCF₃
Molecular mass: 114.0
Boiling point: -29.4°C
Density (for liquid): 1.1 g/cm³
Solubility in water, g/l at 24°C: 0.2 (very poor)
Vapour pressure, kPa at 21.1°C: 600
Auto-ignition temperature: 405°C
Relative vapour density (air = 1): 4
Explosive limits, vol% in air: 6.2 - 12.3
Octanol/water partition coefficient as log Pow: 2.15

EXPOSURE & HEALTH EFFECTS
Routes of exposure Exposure mainly occurs via inhalation. Effects of short-term exposure Asphyxiation. Rapid evaporation of the liquid may cause frostbite. See Notes.	Inhalation risk On loss of containment this substance can cause suffocation by lowering the oxygen content of the air in confined areas. Effects of long-term or repeated exposure

EXPOSURE & HEALTH EFFECTS

Routes of exposure
Exposure mainly occurs via inhalation.

Effects of short-term exposure
Asphyxiation. Rapid evaporation of the liquid may cause frostbite. See Notes.

Inhalation risk
On loss of containment this substance can cause suffocation by lowering the oxygen content of the air in confined areas.

Effects of long-term or repeated exposure

OCCUPATIONAL EXPOSURE LIMITS
MAK: 950 mg/m³, 200 ppm; peak limitation category: II(2); pregnancy risk group: C

ENVIRONMENT

NOTES
High concentrations in the air cause a deficiency of oxygen with the risk of unconsciousness or death. Check oxygen content before entering area. Turn leaking cylinder with the leak up to prevent escape of gas in liquid state.

ADDITIONAL INFORMATION

EC Classification

All rights reserved. The published material is being distributed without warranty of any kind, either expressed or implied. Neither ILO nor WHO nor the European Commission shall be responsible for the interpretation and use of the information contained in this material.

    See Also:
       Toxicological Abbreviations