ICSC 1114 - PERCHLORYL FLUORIDE

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PERCHLORYL FLUORIDE

ICSC: 1114
_{October 1999}

Chlorine oxyfluoride
Chlorine fluoride oxide
Trioxychlorofluoride

CAS No: 7616-94-6
RTECS No: SD1925000
UN No: 3083

ClFO₃
Molecular mass: 102.45

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Not combustible but enhances combustion of other substances. 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!
Inhalation	Cough. Sore throat. Laboured breathing. Shortness of breath.	Ventilation, local exhaust, or breathing protection.	Fresh air, rest. Half-upright position. Refer for medical attention.
Skin	ON CONTACT WITH LIQUID: FROSTBITE.	Cold-insulating gloves. Protective clothing.	ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer for medical attention.
Eyes		Safety goggles or eye protection in combination with breathing protection.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion		Do not eat, drink, or smoke during work.

SPILLAGE DISPOSAL	PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Ventilation. NEVER direct water jet on liquid. Personal protection: complete protective clothing including self-contained breathing apparatus.	UN Hazard Class: 2.3 UN Subsidiary Risks: 5.1

EMERGENCY RESPONSE	SAFE STORAGE
Transport Emergency Card: TEC (R)-20G2TO	Fireproof if in building.

IMPORTANT DATA

Physical State; Appearance
COLOURLESS GAS OR COMPRESSED LIQUEFIED GAS, WITH CHARACTERISTIC ODOUR.

Chemical dangers
The substance is a strong oxidant and reacts violently with combustible and reducing materials, with risks of fire and explosion hazard. Reacts violently with nitrogenous bases and finely divided organic materials, causing fire and explosion hazard. Attacks some forms of plastic, rubber and coatings.

Occupational exposure limits
TLV: 3 ppm as TWA, 6 ppm as STEL; (ACGIH 2004).

Routes of exposure
The substance can be absorbed into the body 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
The substance irritates the respiratory tract. Inhalation of this gas may cause lung oedema (see Notes). Inhalation of high concentrations may cause formation of methaemoglobin. The liquid may cause frostbite. Medical observation is indicated. The effects may be delayed.

Effects of long-term or repeated exposure
The substance may have effects on the blood, resulting in formation of methaemoglobin. The substance may cause fluorosis (see Notes).

PHYSICAL PROPERTIES	ENVIRONMENTAL DATA
Boiling point: -46.7°C Melting point: -147.7°C Relative density (water = 1): 1.4 (liquid) Solubility in water, g/100 ml at 20°C: 0.06

NOTES

Depending on the degree of exposure, periodic medical examination is suggested.
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
Turn leaking cylinder with the leak up to prevent escape of gas in liquid state.
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.
Card has been partly updated in October 2005. See section Emergency Response.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004

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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.

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