International Chemical Safety Cards DIPHENYLAMINE ICSC: 0466 N-Phenylaniline Anilinobenzene N,N-Diphenylamine N-Phenylbenzamine C12H11N / C6H5NHC6H5 Molecular mass: 169.2 ICSC #    0466 CAS #     122-39-4 RTECS # JJ7800000 UN #        2811 EC #         612-026-00-5 March 25, 1996 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 Finely dispersed particles form explosive mixtures in air. Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting. EXPOSURE PREVENT DISPERSION OF DUST!  •INHALATION Cough. Sore throat. Blue lips or finger nails. Blue skin. Headache. Dizziness. Nausea. Confusion. Convulsions. Unconsciousness. Local exhaust or breathing protection. Fresh air, rest. Refer for medical attention. See Notes.  •SKIN MAY BE ABSORBED! Redness. Blue lips or fingernails. Blue skin. (Further see Inhalation). Protective gloves. Protective clothing. Rinse and then wash skin with water and soap. Refer for medical attention.  •EYES Redness. Safety spectacles. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •INGESTION (Further see Inhalation). Do not eat, drink, or smoke during work. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Give plenty of water to drink. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Personal protection: chemical protection suit including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting, then remove to safe place. Separated from strong acids, oxidants . Store in an area without drain or sewer access. T symbol N symbol R: 23/24/25-33-50/53 S: 1/2-28-36/37-45-60-61 UN Hazard Class: 6.1 UN Packing Group: II SEE IMPORTANT INFORMATION ON BACK ICSC: 0466 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 DIPHENYLAMINE ICSC: 0466 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: COLOURLESS CRYSTALS , WITH CHARACTERISTIC ODOUR. PHYSICAL DANGERS: Dust explosion possible if in powder or granular form, mixed with air. CHEMICAL DANGERS: The substance decomposes on heating or on burning producing toxic fumes including nitrogen oxides . Reacts with strong oxidants and strong acids . OCCUPATIONAL EXPOSURE LIMITS: TLV: 10 mg/m³ as TWA; A4 (not classifiable as a human carcinogen); (ACGIH 2005). OSHA PEL: none NIOSH REL: TWA 10 mg/m3 NIOSH IDLH: No data ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion. INHALATION RISK: Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly. 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 blood , resulting in formation of methaemoglobin. See Notes. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: The substance may have effects on the kidneys and blood , resulting in the formation of methaemoglobin. PHYSICAL PROPERTIES Boiling point: 302°C Melting point: 53°C Density: 1.2 g/cm3 Solubility in water: none Vapour pressure, Pa at 108°C: 133 Relative vapour density (air = 1): 5.8 Flash point: 153°C c.c. Auto-ignition temperature: 634°C Octanol/water partition coefficient as log Pow: 3.34 ENVIRONMENTAL DATA The substance is toxic to aquatic organisms. The substance may cause long-term effects in the aquatic environment. N O T E S Technical product may contain a carcinogenic impurity (4-aminobiphenyl). Depending on the degree of exposure, periodic medical examination is suggested. Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available. Transport Emergency Card: TEC (R)-61GT2-II NFPA Code: H3; F1; R0 ADDITIONAL INFORMATION ICSC: 0466 DIPHENYLAMINE (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.