International Chemical Safety Cards BROMINE PENTAFLUORIDE ICSC: 0974 Bromine fluoride BrF5 Molecular mass: 174.9 ICSC #    0974 CAS #     7789-30-2 RTECS # EF9350000 UN #        1745 April 11, 2000 Peer reviewed 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. Gives off irritating or toxic fumes (or gases) in a fire. NO contact with flammable substances. NO contact with water, combustible and organic compounds. In case of fire in the surroundings: only use carbon dioxide, dry sand or powder . NO hydrous agents . EXPLOSION Risk of fire and explosion on contact with water or steam, fuels and organic compounds. In case of fire: cool drums, etc., by spraying with water but avoid contact of the substance with water. Combat fire from a sheltered position. EXPOSURE AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!  •INHALATION Burning sensation. Cough. Shortness of breath. Sore throat. Laboured breathing. Symptoms may be delayed (see Notes). Closed system and ventilation. Fresh air, rest. Half-upright position. Artificial respiration if indicated. 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. 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 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 STORAGE PACKAGING & LABELLING Evacuate danger area! Consult an expert! Ventilation. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in vermiculite, earth, dry sand or inert absorbent and remove to safe place. Do NOT wash away into sewer. Do NOT absorb in saw-dust or other combustible absorbents. NEVER direct water jet on liquid. (Extra personal protection: complete protective clothing including self-contained breathing apparatus). Separated from food and feedstuffs and all other substances (see Chemical Dangers). Dry. Well closed. Keep in a well-ventilated room. Airtight. Unbreakable packaging; put breakable packaging into closed unbreakable container. Do not transport with food and feedstuffs. R: S: UN Hazard Class: 5.1 UN Subsidiary Risks: 6.1 and 8 UN Packing Group: I SEE IMPORTANT INFORMATION ON BACK ICSC: 0974 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

International Chemical Safety Cards BROMINE PENTAFLUORIDE ICSC: 0974 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: PALE YELLOW TO COLOURLESS, FUMING LIQUID , WITH PUNGENT ODOUR. PHYSICAL DANGERS: The vapour is heavier than air. CHEMICAL DANGERS: The substance decomposes on heating above 460°C and on contact with acid or acid fumes producing very toxic fumes of hydrogen fluoride (see ICSC 0283) and hydrogen bromide (see ICSC 0282). Reacts violently with fuels and organic compounds, hydrogen containing material (such as ammonia, acetic acid, grease, paper) causing fire and explosion hazard. Reacts explosively with water or steam to produce toxic and corrosive fumes of hydrogen fluoride and hydrogen bromide. Reacts with all known elements, except nitrogen, oxygen and rare gases. OCCUPATIONAL EXPOSURE LIMITS: TLV: 0.1 ppm; 0.72 mg/m3 (ACGIH 1999). OSHA PEL: none NIOSH REL: TWA 0.1 ppm (0.7 mg/m3) NIOSH IDLH: No data ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation of its vapour. INHALATION RISK: A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C. EFFECTS OF SHORT-TERM EXPOSURE: The substance is corrosive to the eyes, the skin and the respiratory tract. Corrosive on ingestion. Inhalation of the vapour may cause lung oedema (see Notes). Exposure may result in death. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: May cause fluorosis due to formation of hydrogen fluoride, further see ICSC 0283. PHYSICAL PROPERTIES 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 ENVIRONMENTAL DATA N O T E S Reacts violently with fire extinguishing agents such as water. Depending on the degree of exposure, periodic medical examination is indicated. 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. Transport Emergency Card: TEC (R)-51G11 NFPA Code: H 4; F 0; R 3; W; OX ADDITIONAL INFORMATION ICSC: 0974 BROMINE PENTAFLUORIDE (C) IPCS, CEC, 1994

IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.