International Chemical Safety Cards 1,2,3,4-TETRAHYDRONAPHTHALENE ICSC: 1527 Tetralin Tetrahydronaphthalene Naphthalene, 1,2,3,4-tetrahydro- C10H12 Molecular mass: 132.20 ICSC #    1527 CAS #     119-64-2 RTECS # QK3850000 EC #         601-045-00-4 October 27, 2004 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 contact with oxidants. NO open flames. Powder, water spray, foam, carbon dioxide. EXPLOSION Above 77°C explosive vapour/air mixtures may be formed. Above 77°C use a closed system, ventilation. Prevent build-up of electrostatic charges (e.g., by grounding). In case of fire: keep drums, etc., cool by spraying with water. EXPOSURE  •INHALATION Cough. Dizziness. Headache. Nausea. Vomiting. Weakness. Ventilation, local exhaust, or breathing protection. Fresh air, rest. Refer for medical attention.  •SKIN Redness. Pain. Protective gloves. Rinse skin with plenty of water or shower. Remove contaminated clothes.  •EYES Pain. Redness. Blurred vision. 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. (See Inhalation). Do not eat, drink, or smoke during work. Do NOT induce vomiting. Give plenty of water to drink. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Ventilation. Collect leaking liquid in covered 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. Separated from strong oxidants. Keep in a well-ventilated room. Well closed to reduce rate of peroxide formation. Xi symbol N symbol R: 19-36/38-51/53 S: 2-26-28-61 SEE IMPORTANT INFORMATION ON BACK ICSC: 1527 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 1,2,3,4-TETRAHYDRONAPHTHALENE ICSC: 1527 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: COLOURLESS LIQUID , WITH CHARACTERISTIC ODOUR. PHYSICAL DANGERS: As a result of flow, agitation, etc., electrostatic charges can be generated. CHEMICAL DANGERS: The substance can form explosive peroxides. The substance decomposes on heating producing irritating fumes . Reacts vigorously with oxidants. OCCUPATIONAL EXPOSURE LIMITS: TLV not established. MAK not established. ROUTES OF EXPOSURE: INHALATION RISK: A harmful contamination of the air will 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 irritating to the eyes , the skin and the respiratory tract . The substance may cause effects on the central nervous system . If this liquid is swallowed, aspiration into the lungs may result in chemical pneumonitis. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: Repeated or prolonged contact with skin may cause dermatitis. The substance may have effects on the kidneys . PHYSICAL PROPERTIES Boiling point: 207.6°C Melting point: -35.8°C Relative density (water = 1): 0.9702 Solubility in water: very poor Vapour pressure, kPa at 25°C: 0.05 Relative vapour density (air = 1): 4.6 Flash point: 77°C o.c. Auto-ignition temperature: 385°C Explosive limits, vol% in air: 0.8 (at 100°C)-5.0 (at 150°C) Octanol/water partition coefficient as log Pow: 3.78 ENVIRONMENTAL DATA The substance is toxic to aquatic organisms. Bioaccumulation of this chemical may occur in fish. It is strongly advised that this substance does not enter the environment. N O T E S Check for peroxides prior to distillation; eliminate if found. NFPA Code: H1; F2; R0; ADDITIONAL INFORMATION ICSC: 1527 1,2,3,4-TETRAHYDRONAPHTHALENE (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.