International Chemical Safety Cards 2,2-DICHLORO-1,1,1-TRIFLUOROETHANE ICSC: 1343 HCFC 123 C2HCl2F3 / CHCl2CF3 Molecular mass: 152.9 ICSC #    1343 CAS #     306-83-2 RTECS # KI1108000 November 24, 1998 Validated TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Not combustible. NO open flames. In case of fire in the surroundings: all extinguishing agents allowed. EXPLOSION In case of fire: keep drums, etc., cool by spraying with water. EXPOSURE  •INHALATION Confusion. Dizziness. Drowsiness. Unconsciousness. Local exhaust or breathing protection. Fresh air, rest. Artificial respiration if indicated. Refer for medical attention.  •SKIN Protective gloves. Rinse skin with plenty of water or shower.  •EYES Redness. Pain. Safety spectacles. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •INGESTION (See Inhalation). Rest. 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 let this chemical enter the environment. Chemical protection suit including self-contained breathing apparatus. Keep in a well-ventilated room. SEE IMPORTANT INFORMATION ON BACK ICSC: 1343 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 2,2-DICHLORO-1,1,1-TRIFLUOROETHANE ICSC: 1343 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: COLOURLESS LIQUID , WITH CHARACTERISTIC ODOUR. PHYSICAL DANGERS: The vapour is heavier than air and may accumulate in low ceiling spaces causing deficiency of oxygen. CHEMICAL DANGERS: The substance decomposes on heating producing phosgene , hydrogen fluoride and hydrogen chloride . OCCUPATIONAL EXPOSURE LIMITS: TLV not established. Carcinogen category: 3B (DFG 2008). ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation. INHALATION RISK: No indication can be given about the rate in which a harmful concentration in the air is reached on evaporation of this substance at 20°C. EFFECTS OF SHORT-TERM EXPOSURE: The substance irritates the eyes . The substance may cause effects on the central nervous system and cardiovascular system , resulting in narcosis and cardiac disorders. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: The substance may have effects on the liver. PHYSICAL PROPERTIES Boiling point: 28°C Melting point: -107°C Relative density (water = 1): 1.5 Solubility in water, g/100 ml at 25°C: 0.21 Vapour pressure, Pa at 25°C: 14 Relative vapour density (air = 1): 6.4 ENVIRONMENTAL DATA This substance may be hazardous to the environment; special attention should be given to its impact on the ozone layer . It is strongly advised not to let the chemical enter into the environment because it persists in the environment. Avoid release to the environment in circumstances different to normal use. N O T E S High concentrations in the air cause a deficiency of oxygen with the risk of unconsciousness or death. Check oxygen content before entering area. Card has been partially updated in February 2009: see Occupational Exposure Limits. ADDITIONAL INFORMATION ICSC: 1343 2,2-DICHLORO-1,1,1-TRIFLUOROETHANE (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.