International Chemical Safety Cards 1,1,2,2,-TETRABROMOETHANE ICSC: 1235 Acetylene tetrabromide Tetrabromoacetylene sym-Tetrabromoethane Muthmann's liquid C2H2Br4/Br2CHCHBr2 Molecular mass: 345.7 ICSC #    1235 CAS #     79-27-6 RTECS # KI8225000 UN #        2504 EC #         602-016-00-9 TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire. In case of fire in the surroundings: all extinguishing agents allowed. EXPLOSION EXPOSURE PREVENT GENERATION OF MISTS!  •INHALATION Abdominal pain. Cough. Headache. Sore throat. Ventilation, local exhaust, or breathing protection. Fresh air, rest. Refer for medical attention.  •SKIN Redness. Protective gloves. Protective clothing. Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.  •EYES Redness. 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 (further see Inhalation). Do not eat, drink, or smoke during work. Rinse mouth. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in dry sand or inert absorbent and remove to safe place (extra personal protection: self-contained breathing apparatus). Separated from strong oxidants, strong bases, food and feedstuffs. Cool. Well closed. Ventilation along the floor. Do not transport with food and feedstuffs. T+ symbol R: 26-36 S: 1/2-24-27-45 UN Hazard Class: 6.1 UN Packing Group: III SEE IMPORTANT INFORMATION ON BACK ICSC: 1235 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1998. 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 1,1,2,2,-TETRABROMOETHANE ICSC: 1235 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: YELLOW, HEAVY LIQUID , WITH PUNGENT ODOUR. PHYSICAL DANGERS: CHEMICAL DANGERS: The substance decomposes on heating or on burning producing toxic and corrosive fumes including carbonyl bromide, hydrogen bromide. Reacts with strong bases and strong oxidants. Attacks some metals and some plastics, rubber and coatings. OCCUPATIONAL EXPOSURE LIMITS: TLV: 1 ppm; 14 mg/m3 (as TWA) (ACGIH 1995-1996). MAK: 1 ppm; 14 mg/m3; (1995). MAK as STEL: 2 ppm; 28 mg/m3; 30 min/4X (1995). OSHA PEL: TWA 1 ppm (14 mg/m3) NIOSH REL: See Appendix D NIOSH IDLH: 8 ppm ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation of its vapour and by ingestion. INHALATION RISK: A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C. EFFECTS OF SHORT-TERM EXPOSURE: The substance irritates the eyes, the skin and the respiratory tract. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: The substance may have effects on the liver. PHYSICAL PROPERTIES Boiling point: 243.5°C Melting point: 0°C Relative density (water = 1): 2.96 Solubility in water: none Vapour pressure, Pa at 24°C: 5.32 Relative vapour density (air = 1): 11.9 Auto-ignition temperature: 335°C ENVIRONMENTAL DATA The substance is harmful to aquatic organisms. N O T E S Do NOT use in the vicinity of a fire or a hot surface, or during welding. Transport Emergency Card: TEC (R)-61G1c NFPA Code: H3; F0; R1; ADDITIONAL INFORMATION ICSC: 1235 1,1,2,2,-TETRABROMOETHANE (C) IPCS, CEC, 1998

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