International Chemical Safety Cards 1,2,4,5-TETRACHLOROBENZENE ICSC: 0676 Benzene tetrachloride s-Tetrachlorobenzene C6H2Cl4 Molecular mass: 215.9 ICSC #    0676 CAS #     95-94-3 RTECS # DB9450000 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, carbon dioxide. EXPLOSION Risk of fire and explosion on contact with oxidants. EXPOSURE  •INHALATION Cough. Local exhaust. Fresh air, rest. Refer for medical attention.  •SKIN Protective gloves. Remove contaminated clothes. Rinse skin with plenty of water or shower.  •EYES Safety goggles. 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. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Sweep spilled substance into covered containers; if appropriate, moisten first to prevent dusting. Do NOT let this chemical enter the environment. (Extra personal protection: P2 filter respirator for harmful particles.) Separated from strong oxidants. R: S: SEE IMPORTANT INFORMATION ON BACK ICSC: 0676 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 1,2,4,5-TETRACHLOROBENZENE ICSC: 0676 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: COLOURLESS CRYSTALS PHYSICAL DANGERS: CHEMICAL DANGERS: The substance decomposes on burning producing toxic and corrosive fumes including hydrogen chloride . Reacts with strong oxidants . OCCUPATIONAL EXPOSURE LIMITS: TLV not established. ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation of its aerosol and by ingestion. INHALATION RISK: Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly on spraying or when dispersed, especially if powdered. EFFECTS OF SHORT-TERM EXPOSURE: EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: The substance may have effects on the liver , resulting in liver impairment . PHYSICAL PROPERTIES Boiling point: 243-246°C Melting point: 139-140°C Density: 1.83 g/cm3 Solubility in water: 2.16 mg/l at 25 °C Vapour pressure, Pa at 25°C: 0.7 Relative vapour density (air = 1): 7.4 Flash point: 155°C c.c. Octanol/water partition coefficient as log Pow: 4.9 ENVIRONMENTAL DATA The substance is very toxic to aquatic organisms. Bioaccumulation of this chemical may occur in fish. N O T E S Health effects of exposure to the substance have not been investigated adequately. NFPA Code: H 1; F 1; R 0; ADDITIONAL INFORMATION ICSC: 0676 1,2,4,5-TETRACHLOROBENZENE (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.