International Chemical Safety Cards m-PHENYLENEDIAMINE ICSC: 1302 m-Diaminobenzene 1,3-Benzenediamine 3-Aminoaniline 1,3-Phenylenediamine C6H8N2 / C6H4(NH2)2 Molecular mass: 108.14 ICSC #    1302 CAS #     108-45-2 RTECS # SS7700000 UN #        1673 EC #         612-147-00-3 March 23, 1999 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, powder. EXPLOSION EXPOSURE STRICT HYGIENE! IN ALL CASES CONSULT A DOCTOR!  •INHALATION Blue lips or finger nails. Blue skin. Confusion. Convulsions. Dizziness. Headache. Nausea. Unconsciousness. Local exhaust or breathing protection. Fresh air, rest. Refer for medical attention.  •SKIN MAY BE ABSORBED! Redness. (Further see Inhalation). Protective gloves. Protective clothing. Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.  •EYES Redness. Pain. Safety goggles, face shield, or eye protection in combination with breathing protection. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •INGESTION (See Inhalation). Do not eat, drink, or smoke during work. Rinse mouth. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment. Personal protection: complete protective clothing including self-contained breathing apparatus. Separated from strong oxidants, food and feedstuffs . Keep in the dark. Well closed. Do not transport with food and feedstuffs. T symbol N symbol R: 23/24/25-36-43-50/53-68 S: 1/2-28-36/37-45-60-61 UN Hazard Class: 6.1 UN Packing Group: III SEE IMPORTANT INFORMATION ON BACK ICSC: 1302 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 m-PHENYLENEDIAMINE ICSC: 1302 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: WHITE CRYSTALS, TURNS RED ON EXPOSURE TO AIR. PHYSICAL DANGERS: CHEMICAL DANGERS: The substance decomposes on burning producing toxic fumes including nitrogen oxides . Reacts with strong oxidants. OCCUPATIONAL EXPOSURE LIMITS: TLV: 0.1 mg/m³ as TWA; A4 (not classifiable as a human carcinogen); (ACGIH 2004). MAK: skin absorption (H); Carcinogen category: 3B; (DFG 2004). ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation of its vapour, through the skin 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 ; on spraying or dispersing, however, much faster. EFFECTS OF SHORT-TERM EXPOSURE: The substance is irritating to the eyes and the skin . The substance may cause effects on the kidneys and blood , resulting in renal failure and formation of methaemoglobin. The effects may be delayed. Medical observation is indicated. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: Repeated or prolonged contact may cause skin sensitization. The substance may have effects on the kidneys , resulting in renal failure. PHYSICAL PROPERTIES Boiling point: 284-287°C Melting point: 62-63°C Density: 1.14 g/cm3 Solubility in water: soluble Vapour pressure, Pa at 99.8°C: 133 Relative vapour density (air = 1): 3.7 Flash point: 187°C c.c. Auto-ignition temperature: 560°C Octanol/water partition coefficient as log Pow: -0.33 ENVIRONMENTAL DATA The substance is toxic to aquatic organisms. N O T E S 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. Direct Brown BR, Direct Brown GG, Developer C, Developer H, Developer M, Developer 11 are trade names. See also ICSC0805 p-Phenylenediamine. Card has been partly updated in October 2004 and April 2005. See sections Occupational Exposure Limits, EU classification, Emergency Response. Transport Emergency Card: TEC (R)-61S1673-S ADDITIONAL INFORMATION ICSC: 1302 m-PHENYLENEDIAMINE (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.