International Chemical Safety Cards BROMOCHLOROMETHANE ICSC: 0392 Chlorobromomethane Methylene chlorobromide CH2BrCl Molecular mass: 129.4 ICSC #    0392 CAS #     74-97-5 RTECS # PA5250000 UN #        1887 October 23, 1995 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Not combustible. In case of fire in the surroundings: all extinguishing agents allowed. EXPLOSION Fire fighters should wear self-contained breathing apparatus. EXPOSURE PREVENT GENERATION OF MISTS!  •INHALATION Dizziness. Drowsiness. Headache. Nausea. Unconsciousness. Ventilation, local exhaust, or breathing protection. Fresh air, rest. Half-upright position. Artificial respiration if indicated. Refer for medical attention.  •SKIN Dry skin. Redness. Protective gloves. Remove contaminated clothes. Rinse skin with plenty of water or shower.  •EYES Redness. Safety spectacles, 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. Do NOT induce vomiting. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT wash away into sewer, then remove to safe place. (Extra personal protection: A filter for organic vapours. Separated from food and feedstuffs. Dry. Ventilation along the floor. Do not transport with food and feedstuffs. R: S: UN Hazard Class: 6.1 UN Packing Group: III SEE IMPORTANT INFORMATION ON BACK ICSC: 0392 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 BROMOCHLOROMETHANE ICSC: 0392 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: COLOURLESS TO YELLOW LIQUID , WITH CHARACTERISTIC ODOUR. PHYSICAL DANGERS: CHEMICAL DANGERS: The substance decomposes on heating producing toxic and corrosive fumes including hydrogen chloride, phosgene, hydrogen bromide. Attacks many metals including steel, aluminium, magnesium and zinc unless inhibited. OCCUPATIONAL EXPOSURE LIMITS: TLV: 200 ppm; 1060 mg/m3 (ACGIH 1994-1995). OSHA PEL: TWA 200 ppm (1050 mg/m3) NIOSH REL: TWA 200 ppm (1050 mg/m3) NIOSH IDLH: 2000 ppm ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation. INHALATION RISK: A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20°C. EFFECTS OF SHORT-TERM EXPOSURE: Inhalation of the substance may cause lung oedema (see Notes). The substance may cause effects on the central nervous system and blood , resulting in impaired functions and formation of carboxyhaemoglobin. Exposure may result in lowering of consciousness. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: Repeated or prolonged contact with skin may cause dermatitis. Lungs may be affected by repeated or prolonged exposure. The substance may have effects on the kidney and liver , resulting in impaired functions. PHYSICAL PROPERTIES Boiling point: 68°C Melting point: -88°C Relative density (water = 1): 2.0 Solubility in water: poor Vapour pressure, kPa at 20°C: 15.6 Relative vapour density (air = 1): 4.5 ENVIRONMENTAL DATA N O T E S 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. Halon 1011 is a trade name. Transport Emergency Card: TEC (R)-61G61c ADDITIONAL INFORMATION ICSC: 0392 BROMOCHLOROMETHANE (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.