International Chemical Safety Cards BORON BROMIDE ICSC: 0230 Tribromoborane Boron(III) bromide BBr3 Molecular mass: 250.5 ICSC #    0230 CAS #     10294-33-4 RTECS # ED7400000 UN #        2692 EC #         005-003-00-0 March 15, 2001 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Not combustible. Heating will cause rise in pressure with risk of bursting. NO contact with water or steam. NO contact with hot surfaces. In case of fire in the surroundings: powder, carbon dioxide . NO water . EXPLOSION Risk of fire and explosion on contact with water or when heated to decomposition. In case of fire: cool drums, etc., by spraying with water but avoid contact of the substance with water. EXPOSURE STRICT HYGIENE! IN ALL CASES CONSULT A DOCTOR!  •INHALATION Cough. Shortness of breath. Sore throat. Burning sensation. Laboured breathing. Symptoms may be delayed (see Notes). Ventilation. Local exhaust or breathing protection. Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.  •SKIN Redness. Skin burns. Pain. Blisters. Protective gloves. Protective clothing. First rinse with plenty of water, then remove contaminated clothes and rinse again. Refer for medical attention.  •EYES Redness. Pain. Severe deep burns. Face shield, 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 cramps. Burning sensation. Weakness. Diarrhoea. Vomiting. Abdominal pain. Shock or collapse. Do not eat, drink, or smoke during work. Rinse mouth. 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 sand or inert absorbent and remove to safe place. NEVER direct water jet on liquid. Chemical protection suit including self-contained breathing apparatus. Separated from incompatible materials . See Chemical Dangers. Cool. Dry. Ventilation along the floor. Airtight. Unbreakable packaging; put breakable packaging into closed unbreakable container. T+ symbol C symbol R: 14-26/28-35 S: 1/2-9-26-28-36/37/39-45 UN Hazard Class: 8 UN Packing Group: I SEE IMPORTANT INFORMATION ON BACK ICSC: 0230 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 BORON BROMIDE ICSC: 0230 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: COLOURLESS FUMING LIQUID , WITH PUNGENT ODOUR. PHYSICAL DANGERS: The vapour is heavier than air. CHEMICAL DANGERS: May explode on heating. The substance decomposes on contact with alcohol producing toxic and corrosive fumes ( hydrogen bromide ). Reacts violently with water producing hydrogen bromide gas, causing explosion hazard. OCCUPATIONAL EXPOSURE LIMITS: TLV: 1 ppm; (Ceiling value); (ACGIH 2000). OSHA PEL: none NIOSH REL: C 1 ppm (10 mg/m3) NIOSH IDLH: No data ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation and by ingestion. 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 may cause lung oedema (see Notes). EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: PHYSICAL PROPERTIES Boiling point: 91°C Melting point: -46°C Relative density (water = 1): 2.7 Solubility in water: reaction Vapour pressure, kPa at 14°C: 5.3 Relative vapour density (air = 1): 8.6 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.4 ENVIRONMENTAL DATA N O T E S Reacts violently with fire extinguishing agents such as water or foam. The occupational exposure limit value should not be exceeded during any part of the working exposure. The odour warning when the exposure limit value is exceeded is insufficient. 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. Immediate administration of an appropriate spray, by a doctor or a person authorized by him/her, should be considered. Do NOT take working clothes home. Transport Emergency Card: TEC (R)-80G10 NFPA Code: H4; F0; R2; W ADDITIONAL INFORMATION ICSC: 0230 BORON BROMIDE (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.