International Chemical Safety Cards 1,1,1-TRICHLOROETHANE ICSC: 0079 1,1,1-TRICHLOROETHANE Methyl chloroform Methyltrichloromethane alpha-Trichloroethane C2H3Cl3 / CCl3CH3 Molecular mass: 133.4 CAS # 71-55-6 RTECS # KJ2975000 ICSC # 0079 UN # 2831 EC # 602-013-00-2 TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Combustible under specific conditions. Heating will cause rise in pressure with risk of bursting. See Notes. Gives off irritating or toxic fumes (or gases) in a fire. 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 PREVENT GENERATION OF MISTS! INHALATION Ataxia. Dizziness. Drowsiness. Headache. Nausea. Unconsciousness. Ventilation, local exhaust, or breathing protection. Fresh air, rest. Artificial respiration if indicated. Refer for medical attention. SKIN Dry skin. Redness. Protective gloves. Remove contaminated clothes. Rinse and then wash skin with water and soap. EYES Redness. 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 Diarrhoea. Nausea. Vomiting (further see Inhalation). Do not eat, drink, or smoke during work. Rinse mouth. Give a slurry of activated charcoal in water to drink. Do NOT induce vomiting. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Ventilation. Collect leaking and spilled liquid in sealable, suitable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT let this chemical enter the environment (extra personal protection: self-contained breathing apparatus). Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs and incompatible materials (see Chemical Dangers). Cool. Dry. Ventilation along the floor. Do not transport with food and feedstuffs. Xn symbol N symbol R: 20-59 S: (2-)24/25-59-61 Note: F UN Hazard Class: 6.1 UN Packing Group: III Marine pollutant. SEE IMPORTANT INFORMATION ON BACK ICSC: 0079 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993 No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and IDLH values.

International Chemical Safety Cards 1,1,1-TRICHLOROETHANE ICSC: 0079 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. CHEMICAL DANGERS: The substance decomposes on heating or on burning producing toxic and corrosive fumes including phosgene and hydrogen chloride. Reacts violently with aluminium, manganese and their alloys, alkalis, strong oxidants, acetone and zinc. Attacks natural rubber. Mixtures of 1,1,1-trichloroethane with potassium or its alloys are shock sensitive. Reacts slowly with water releasing corrosive hydrochloric acid. OCCUPATIONAL EXPOSURE LIMITS (OELs): TLV: 350 ppm; 1910 mg/m3 (as TWA); 450 ppm; 2460 mg/m3 (as STEL) (ACGIH 1994-1995). OSHA PEL: TWA 350 ppm (1900 mg/m3) NIOSH REL: C 350 ppm (1900 mg/m3) 15-minute See Appendix C (Chloroethanes) NIOSH IDLH: 700 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 can be reached rather quickly on evaporation of this substance at 20°C. EFFECTS OF SHORT-TERM EXPOSURE: The substance irritates the eyes, the skin and the respiratory tract. The substance may cause effects on the heart and central nervous system, kidneys and liver , resulting in cardiac disorders and respiratory failure. Exposure at high level may result in death. Medical observation is indicated. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: The liquid defats the skin. The substance may have effects on the liver. PHYSICAL PROPERTIES Boiling point: 74°C Melting point: -30°C Relative density (water = 1): 1.34 Solubility in water: none Vapour pressure, kPa at 20°C: 13.3 Relative vapour density (air = 1): 4.6 Flash point: see Notes°C Auto-ignition temperature: 537°C Explosive limits, vol% in air: 8-16 Octanol/water partition coefficient as log Pow: 2.49 ENVIRONMENTAL DATA The substance is harmful to aquatic organisms. This substance may be hazardous to the environment; special attention should be given to air and ground water. N O T E S Combustible vapour/air mixtures difficult to ignite, may be developed under certain conditions. The substance burns only in excess oxygen or if a strong source of ignition is present. Use of alcoholic beverages enhances the harmful effect. Depending on the degree of exposure, periodic medical examination is indicated. An added stabilizer or inhibitor can influence the toxicological properties of this substance, consult an expert. Do NOT use in the vicinity of a fire or a hot surface, or during welding. Aerothene, Algylen, Trichloran, Chlorylen, Genklene, Chlorothene NU, Chlorothene VG, and Solvent 111 are trade names. Transport Emergency Card: TEC (R)-721 NFPA Code: H2; F1; R0 ADDITIONAL INFORMATION ICSC: 0079 1,1,1-TRICHLOROETHANE © IPCS, CEC, 1993

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 IDLH values.