International Chemical Safety Cards 1,3,5-TRICHLOROBENZENE ICSC: 0344 sym-Trichlorobenzene C6H3Cl3 Molecular mass: 181.5 ICSC #    0344 CAS #     108-70-3 RTECS # DC2100100 November 26, 2003 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire. NO open flames. Powder, water spray, foam, carbon dioxide. EXPLOSION EXPOSURE  •INHALATION Cough. Sore throat. Local exhaust or breathing protection. Fresh air, rest. Refer for medical attention.  •SKIN Protective gloves. Remove contaminated clothes. Rinse skin with plenty of water or shower.  •EYES Redness. Pain. 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 Do not eat, drink, or smoke during work. Rinse mouth. Give plenty of water to drink. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment. (Extra personal protection: P1 filter respirator for inert particles.) Separated from strong oxidants. Keep in a well-ventilated room. R: S: SEE IMPORTANT INFORMATION ON BACK ICSC: 0344 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 1,3,5-TRICHLOROBENZENE ICSC: 0344 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: WHITE TO YELLOW CRYSTALS OR POWDER , WITH CHARACTERISTIC ODOUR. PHYSICAL DANGERS: CHEMICAL DANGERS: The substance decomposes on burning producing toxic and corrosive fumes . Reacts with oxidants. OCCUPATIONAL EXPOSURE LIMITS: TLV not established. MAK: 5 ppm, 38 mg/m³; H; Peak limitation category: II(2); Pregnancy risk group: D; (DFG 2003). ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion. INHALATION RISK: A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C; on spraying or dispersing, however, much faster. EFFECTS OF SHORT-TERM EXPOSURE: The substance is irritating to the eyes and the respiratory tract . EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: PHYSICAL PROPERTIES Boiling point: 208°C Melting point: 63°C Solubility in water, g/100 ml at 25°C: 0.0006 Vapour pressure, Pa at 25°C: 24 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.0 Flash point: 107°C Octanol/water partition coefficient as log Pow: 4.15 ENVIRONMENTAL DATA This substance may be hazardous in the environment; special attention should be given to fish. Bioaccumulation of this chemical may occur in fish. N O T E S ADDITIONAL INFORMATION ICSC: 0344 1,3,5-TRICHLOROBENZENE (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.