ICSC 0974 - BROMINE PENTAFLUORIDE

BROMINE PENTAFLUORIDE	ICSC: 0974 (November 2000)
Bromine fluoride

CAS #: 7789-30-2

UN #: 1745

EC Number: 232-157-8

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Not combustible but enhances combustion of other substances. Many reactions may cause fire or explosion. Gives off irritating or toxic fumes (or gases) in a fire. Risk of fire and explosion on contact with water, steam, fuels or organic materials.	NO contact with flammables. NO contact with water, combustible substances or organic materials.	In case of fire in the surroundings, use appropriate extinguishing media. NO hydrous agents. In case of fire: keep drums, etc., cool by spraying with water. NO direct contact with water. Combat fire from a sheltered position.

AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Burning sensation. Cough. Shortness of breath. Sore throat. Laboured breathing. Symptoms may be delayed. See Notes.	Use closed system or ventilation.	Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.
Skin	Redness. Pain. Skin burns. Blisters.	Protective gloves. Protective clothing.	Wear protective gloves when administering first aid. Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention .
Eyes	Redness. Pain. Blurred vision. Severe deep burns.	Wear 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 refer for medical attention.
Ingestion	Abdominal pain. Burning sensation. Shock or collapse.	Do not eat, drink, or smoke during work. Wash hands before eating.	Do NOT induce vomiting. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Evacuate danger area! Consult an expert! Personal protection: complete protective clothing including self-contained breathing apparatus. Ventilation. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in vermiculite, earth, dry sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT wash away into sewer. Do NOT absorb in saw-dust or other combustible absorbents. NEVER direct water jet on liquid.	According to UN GHS Criteria Transportation UN Classification UN Hazard Class: 5.1; UN Subsidiary Risks: 6.1 and 8; UN Pack Group: I
STORAGE
Separated from food and feedstuffs and all other substances. See Chemical Dangers. Dry. Well closed. Keep in a well-ventilated room.
PACKAGING
Airtight. Unbreakable packaging. Put breakable packaging into closed unbreakable container. Do not transport with food and feedstuffs.

BROMINE PENTAFLUORIDE

ICSC: 0974

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance PALE YELLOW OR COLOURLESS FUMING LIQUID WITH PUNGENT ODOUR. Physical dangers The vapour is heavier than air. Chemical dangers Decomposes above 460°C . Decomposes on contact with acids or acid fumes. This produces very toxic fumes of hydrogen fluoride(see ICSC 0283) and hydrogen bromide(see ICSC 0282). Reacts with fuels and organic compounds. This generates fire and explosion hazard. Reacts with water and steam. This produces toxic and corrosive fumes of hydrogen fluoride and hydrogen bromide. Reacts with all known elements, except nitrogen, oxygen and rare gases.	Formula: BrF₅ Molecular mass: 174.9 Boiling point: 41°C Melting point: -61°C Relative density (water = 1): 2.5 Solubility in water: reaction Vapour pressure, kPa at 20°C: 44 Relative vapour density (air = 1): 6.1

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
PALE YELLOW OR COLOURLESS FUMING LIQUID WITH PUNGENT ODOUR.

Physical dangers
The vapour is heavier than air.

Chemical dangers
Decomposes above 460°C . Decomposes on contact with acids or acid fumes. This produces very toxic fumes of hydrogen fluoride(see ICSC 0283) and hydrogen bromide(see ICSC 0282). Reacts with fuels and organic compounds. This generates fire and explosion hazard. Reacts with water and steam. This produces toxic and corrosive fumes of hydrogen fluoride and hydrogen bromide. Reacts with all known elements, except nitrogen, oxygen and rare gases.

Formula: BrF₅
Molecular mass: 174.9
Boiling point: 41°C
Melting point: -61°C
Relative density (water = 1): 2.5
Solubility in water: reaction
Vapour pressure, kPa at 20°C: 44
Relative vapour density (air = 1): 6.1

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of its vapour. Effects of short-term exposure The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation of the vapour may cause lung oedema. See Notes. Exposure could cause death.	Inhalation risk A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C. Effects of long-term or repeated exposure May cause fluorosis due to formation of hydrogen fluoride. Further see ICSC 0283.

EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation of the vapour may cause lung oedema. See Notes. Exposure could cause death.

Inhalation risk
A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C.

Effects of long-term or repeated exposure
May cause fluorosis due to formation of hydrogen fluoride. Further see ICSC 0283.

OCCUPATIONAL EXPOSURE LIMITS
TLV: 0.1 ppm as TWA

ENVIRONMENT

NOTES
Reacts violently with fire extinguishing agents such as water. Depending on the degree of exposure, periodic medical examination is suggested. 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. Do NOT take working clothes home.

ADDITIONAL INFORMATION

EC Classification

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    See Also:
       Toxicological Abbreviations