International Chemical Safety Cards AMITROLE ICSC: 0631 1,2,4-Triazol-3-ylamine 3-Amino-1H-1,2,4-triazole Aminotriazole C2H4N4 Molecular mass: 84.1 ICSC #    0631 CAS #     61-82-5 RTECS # XZ3850000 UN #        2588 EC #         613-011-00-6 April 20, 1994 Peer reviewed TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire. In case of fire in the surroundings: all extinguishing agents allowed. EXPLOSION EXPOSURE STRICT HYGIENE!  •INHALATION Ventilation (not if powder), local exhaust, or breathing protection. Refer for medical attention.  •SKIN Protective gloves. Protective clothing. Remove contaminated clothes. Rinse skin with plenty of water or shower.  •EYES Face shield, or eye protection in combination with breathing protection if powder. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.  •INGESTION Do not eat, drink, or smoke during work. Wash hands before eating. Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Do NOT wash away into sewer. Sweep spilled substance into sealable containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. (Extra personal protection: P3 filter respirator for toxic particles). Separated from food and feedstuffs , incompatible substances (see Chemical Dangers). Keep in the dark. Keep in a well-ventilated room. Do not transport with food and feedstuffs. Severe marine pollutant. Xn symbol R: 40-48/22 S: 2-36-37 UN Hazard Class: 6.1 UN Packing Group: III SEE IMPORTANT INFORMATION ON BACK ICSC: 0631 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 AMITROLE ICSC: 0631 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: ODOURLESS, COLOURLESS CRYSTALS. PHYSICAL DANGERS: CHEMICAL DANGERS: The substance decomposes on heating producing toxic fumes of nitrogen oxides. The substance is a weak base. Reacts with strong acids, strong oxidants, acid chlorides and acid anhydrides. Attacks iron, copper and aluminium. OCCUPATIONAL EXPOSURE LIMITS: TLV: 0.2 mg/m3 (as TWA) (ACGIH 1993-1994). OSHA PEL: none NIOSH REL: Ca TWA 0.2 mg/m3 See Appendix A NIOSH IDLH: Potential occupational carcinogen No data ROUTES OF EXPOSURE: The substance can be absorbed into the body by inhalation of its aerosol and by ingestion. INHALATION RISK: Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly on spraying or when dispersed, especially if powdered. EFFECTS OF SHORT-TERM EXPOSURE: The substance may cause effects on the thyroid. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: The substance may have effects on the thyroid , resulting in goitrogenic effects. PHYSICAL PROPERTIES Melting point: 159°C Solubility in water: good Octanol/water partition coefficient as log Pow: -0.65 ENVIRONMENTAL DATA This substance may be hazardous to the environment; special attention should be given to plants. N O T E S Temperature of decomposition unknown in literature. Depending on the degree of exposure, periodic medical examination is indicated. ADDITIONAL INFORMATION ICSC: 0631 AMITROLE (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.