ICSC 0818 - OXYGEN DIFLUORIDE

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OXYGEN DIFLUORIDE

ICSC: 0818
_{April 2007}

Oxygen fluoride
Fluorine monoxide
Difluoride monoxide

CAS No: 7783-41-7
RTECS No: RS2100000
UN No: 2190

(cylinder)
OF₂
Molecular mass: 54.0

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	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.		In case of fire in the surroundings: in large fires: water spray; in small fires: powder.
EXPLOSION	Risk of fire and explosion. Mixture with water or water vapour explodes violently on spark ignition.		In case of fire: cool cylinder by spraying with water but avoid contact of the substance with water. Combat fire from a sheltered position.

EXPOSURE		AVOID ALL CONTACT!
Inhalation	Cough. Headache. Laboured breathing. Sore throat.	Closed system and ventilation.	Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer immediately for medical attention.
Skin		See Notes.	Remove contaminated clothes.
Eyes	Causes watering of the eyes.	Safety goggles or eye protection in combination with breathing protection.	First rinse with plenty of water (remove contact lenses if easily possible). Refer for medical attention.
Ingestion		Do not eat, drink, or smoke during work.

SPILLAGE DISPOSAL	PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Ventilation. Personal protection: gas-tight chemical protection suit including self-contained breathing apparatus.	UN classification UN Hazard Class: 2.3 UN Subsidiary Risks: 5.1 and 8 GHS classification Signal: Danger Flam circle-Cylinder-Skull May cause or intensify fire; oxidizer Contains gas under pressure; may explode if heated Fatal if inhaled gas

EMERGENCY RESPONSE	SAFE STORAGE
Transport Emergency Card: TEC (R)-20G1TOC	Fireproof. Keep in a well-ventilated room. Separated from incompatible materials. See Chemical Dangers. Cool. Dry.

IMPORTANT DATA

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 and reacts violently with combustible and reducing materials. Reacts with many materials e.g. non-metals such as red phosphorous, boron powder, and porous materials such as silica, alumina and charcoal. Explodes on contact with steam.

Occupational exposure limits
TLV: 0.05 ppm (Ceiling value); (ACGIH 2006).
MAK not established.

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

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
Lachrymation. The substance is irritating to the respiratory tract. Inhalation of this gas may cause lung oedema (see Notes). Exposure slightly above the OEL may result in death.

PHYSICAL PROPERTIES	ENVIRONMENTAL DATA
Boiling point: -145°C Melting point: -224°C Solubility in water, ml/100 ml at 0°C: 6.8 (reacts slowly) Relative vapour density (air = 1): 1.9

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

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2006

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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.

Updated by AS. Approved by GS. Last update: 29.01.2008