International Chemical Safety Cards DIPHENYL ETHER ICSC: 0791 Diphenyl oxide Phenoxybenzene 1,1'-Oxybisbenzene Phenyl ether C12H10O / C6H5OC6H5 Molecular mass: 170.2 ICSC #    0791 CAS #     101-84-8 RTECS # KN8970000 UN #        3077 October 09, 1997 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Combustible. NO open flames. Powder, water spray, foam, carbon dioxide. EXPLOSION EXPOSURE  •INHALATION Cough. Headache. Nausea. Sore throat. Ventilation. Local exhaust. Fresh air, rest.  •SKIN Dry skin. Redness. Pain. Protective gloves. 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. Diarrhoea. Nausea. Vomiting. Do not eat, drink, or smoke during work. Rinse mouth. Give a slurry of activated charcoal in water to drink. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. If solid: Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Do NOT let this chemical enter the environment. Separated from strong oxidants. R: S: UN Hazard Class: 9 UN Packing Group: III SEE IMPORTANT INFORMATION ON BACK ICSC: 0791 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 DIPHENYL ETHER ICSC: 0791 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: COLOURLESS LIQUID OR CRYSTALS , WITH CHARACTERISTIC ODOUR. PHYSICAL DANGERS: CHEMICAL DANGERS: Reacts with strong oxidants. OCCUPATIONAL EXPOSURE LIMITS: TLV (for vapour): 1 ppm; 7 mg/m3 (as TWA) 2 ppm; 14 mg/m3 (STEL) (ACGIH 1997). OSHA PEL: TWA 1 ppm (7 mg/m3) NIOSH REL: TWA 1 ppm (7 mg/m3) NIOSH IDLH: 100 ppm ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation and by ingestion. 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. EFFECTS OF SHORT-TERM EXPOSURE: The aerosol of this substance irritates the eyes and the respiratory tract. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: Repeated or prolonged contact with skin may cause dermatitis. PHYSICAL PROPERTIES Boiling point: 257°C Melting point: 28°C Relative density (water = 1): 1.08 Solubility in water, g/100 ml at 25°C: 0.002 Vapour pressure, Pa at 25°C: 2.7 Relative vapour density (air = 1): 5.9 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00 Flash point: 115°C c.c. 96°C o.c. Auto-ignition temperature: 610°C Explosive limits, vol% in air: 0.8-1.5 Octanol/water partition coefficient as log Pow: 4.21 ENVIRONMENTAL DATA The substance is very toxic to aquatic organisms. In the food chain important to humans, bioaccumulation takes place, specifically in fish. Avoid release to the environment in circumstances different to normal use. N O T E S Health effects of exposure to the substance have not been investigated. The substance has a strong disagreeable odour which may cause nausea. Transport Emergency Card: TEC (R)-90G02 NFPA Code: H1; F1; R0; ADDITIONAL INFORMATION ICSC: 0791 DIPHENYL ETHER (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.