International Chemical Safety Cards TETRACHLORONAPHTHALENE ICSC: 1387 C10H4Cl4 Molecular mass: 265.9 ICSC #    1387 CAS #     1335-88-2 RTECS # QK3700000 March 13, 2001 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. Water spray, foam, powder, carbon dioxide. EXPLOSION EXPOSURE PREVENT DISPERSION OF DUST!  •INHALATION Local exhaust or breathing protection. Fresh air, rest.  •SKIN Redness. Protective gloves. Protective clothing. Remove contaminated clothes. Rinse and then wash skin with water and soap.  •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 Abdominal pain. Headache. Nausea. Vomiting. Do not eat, drink, or smoke during work. Rinse mouth. Rest. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Sweep spilled substance into sealable containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder. Do NOT let this chemical enter the environment. Personal protection: P2 filter respirator for harmful particles. Separated from strong oxidants, food and feedstuffs . Keep in a well-ventilated room. R: S: SEE IMPORTANT INFORMATION ON BACK ICSC: 1387 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 TETRACHLORONAPHTHALENE ICSC: 1387 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: COLOURLESS TO PALE YELLOW CRYSTALS , WITH CHARACTERISTIC ODOUR. PHYSICAL DANGERS: CHEMICAL DANGERS: The substance decomposes on burning producing toxic gases ( hydrogen chloride , phosgene ). Reacts with strong oxidants causing fire and explosion hazard. OCCUPATIONAL EXPOSURE LIMITS: TLV: 2 mg/m³ as TWA; (ACGIH 2004). MAK: IIb (not established but data is available); skin absorption (H); (DFG 2004). OSHA PEL: TWA 2 mg/m3 skin NIOSH REL: TWA 2 mg/m3 skin NIOSH IDLH: Unknown (See Appendix F) ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation of its fumes and through the skin. INHALATION RISK: A harmful contamination of the air will not or will only very slowly be reached on evaporation of this substance at 20°C ; on spraying or dispersing, however, much faster. EFFECTS OF SHORT-TERM EXPOSURE: The substance is mildly irritating to the eyes and the skin . EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: The substance may have effects on the liver , resulting in liver impairment . PHYSICAL PROPERTIES Boiling point: 312-360°C Melting point: 182°C Density: 1.6 g/cm3 Solubility in water: none Vapour pressure, Pa at 25°C: < 0.1 Relative vapour density (air = 1): 9.2 Flash point: 210°C o.c. Octanol/water partition coefficient as log Pow: 5.75-6.19 ENVIRONMENTAL DATA Bioaccumulation of this chemical may occur in fish. It is strongly advised that this substance does not enter the environment. The substance may cause long-term effects in the aquatic environment. N O T E S Halowax is a trade name for chlorinated naphthalenes. The health effects may vary with the proportion of the different isomers present.Card has been partly updated in April 2005. See sections Occupational Exposure Limits, EU classification, Emergency Response. ADDITIONAL INFORMATION ICSC: 1387 TETRACHLORONAPHTHALENE (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.