International Chemical Safety Cards XYLIDINE (MIXED ISOMERS) ICSC: 0600 XYLIDINE (MIXED ISOMERS) ar,ar-Dimethylbenzenamine Dimethylaniline Aminodimethylbenzene Dimethylphenylamine C8H11N / (CH3)2C6H3NH2 Molecular mass: 121.2 CAS # 1300-73-8 RTECS # ZE8575000 ICSC # 0600 UN # 1711 EC # 612-027-00-0 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, AFFF, foam, carbon dioxide. EXPLOSION Above 96°C explosive vapour/air mixtures may be formed. Above 96°C use a closed system, ventilation. EXPOSURE STRICT HYGIENE! IN ALL CASES CONSULT A DOCTOR! INHALATION Blue lips or finger nails. Blue skin. Confusion. Convulsions. Dizziness. Headache. Nausea. Unconsciousness. Ventilation, local exhaust, or breathing protection. Fresh air, rest. Artificial respiration if indicated. 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. Wash hands before eating. Rinse mouth. Give a slurry of activated charcoal in water to drink. Rest. Refer for medical attention. 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. Do NOT wash away into sewer. Do NOT let this chemical enter the environment (extra personal protection: chemical protection suit including self-contained breathing apparatus). Separated from strong oxidants, hypochlorites, food and feedstuffs. Do not transport with food and feedstuffs. T symbol N symbol R: 23/24/25-33-51/53 S: (1/2-)28-36/37-45-61 Note: C UN Hazard Class: 6.1 UN Packing Group: II SEE IMPORTANT INFORMATION ON BACK ICSC: 0600 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993 No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and IDLH values.

International Chemical Safety Cards XYLIDINE (MIXED ISOMERS) ICSC: 0600 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: PALE YELLOW TO BROWN LIQUID , WITH CHARACTERISTIC ODOUR. TURNS BROWN ON EXPOSURE TO AIR. PHYSICAL DANGERS: CHEMICAL DANGERS: The substance decomposes on burning producing nitrogen oxides and carbon monoxide. Reacts violently with strong oxidants. Reacts with hypochlorites forming explosive chloroamines. Attacks plastic and rubber. OCCUPATIONAL EXPOSURE LIMITS (OELs): TLV: 0.5 ppm; 2.5 mg/m3 A3 (skin) (ACGIH 1997). MAK: 5 ppm; 25 mg/m3; (skin) (1997). OSHA PEL: TWA 5 ppm (25 mg/m3) skin NIOSH REL: TWA 2 ppm (10 mg/m3) skin NIOSH IDLH: 50 ppm ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion. INHALATION RISK: A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20°C. EFFECTS OF SHORT-TERM EXPOSURE: The substance irritates the eyes and the skin. The substance may cause effects on the blood , resulting in formation of methaemoglobin. Exposure far above the OEL may result in death. The effects may be delayed in case of skin absorption. Medical observation is indicated. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: The substance may have effects on the kidneys, liver and blood. PHYSICAL PROPERTIES Boiling point: 213-226°C Relative density (water = 1): 0.97-0.99 Solubility in water: poor Vapour pressure, Pa at 20°C: <130 Relative vapour density (air = 1): 4.2 Flash point: 96°C c.c. Explosive limits, vol% in air: 1.5-? Octanol/water partition coefficient as log Pow: 1.8 (estimated) ENVIRONMENTAL DATA The substance is harmful to aquatic organisms. N O T E S Commercial xylidine is a mixture of isomers in which the 2,4-, 2,5- and 2,6-isomers dominate. Physical properties differ for the various isomers of the chemical. 2,6-Xylidine is possibly carcinogenic to humans. Depending on the degree of exposure, periodic medical examination is indicated. Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available. The odour warning when the exposure limit value is exceeded is insufficient. Acid Leather Brown 2G, Acid Orange 24, 11460 Brown, Resorcine Brown J are trade names. Transport Emergency Card: TEC (R)-679 NFPA Code: H3; F1; R0 ADDITIONAL INFORMATION ICSC: 0600 XYLIDINE (MIXED ISOMERS) © IPCS, CEC, 1993

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 IDLH values.