International Chemical Safety Cards ATRAZINE ICSC: 0099 2-Chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine 6-Chloro-N-ethyl-N'-(1-methylethyl)-1,3,5-triazine-2,4-diamine 2-Chloro-4-ethylamino-6-isopropylamino-s-triazine C8H14ClN5 Molecular mass: 215.7 ICSC #    0099 CAS #     1912-24-9 RTECS # XY5600000 UN #        2763 EC #         613-068-00-7 April 22, 1994 Peer reviewe TYPES OF HAZARD/ EXPOSURE ACUTE HAZARDS/ SYMPTOMS PREVENTION FIRST AID/ FIRE FIGHTING FIRE Combustible under specific conditions. Liquid formulations containing organic solvents may be flammable. Gives off irritating or toxic fumes (or gases) in a fire. NO open flames. Powder, water spray, foam, carbon dioxide. EXPLOSION EXPOSURE PREVENT DISPERSION OF DUST! AVOID ALL CONTACT! AVOID EXPOSURE OF ADOLESCENTS AND CHILDREN! IN ALL CASES CONSULT A DOCTOR!  •INHALATION Ventilation (not if powder). Refer for medical attention.  •SKIN Protective gloves. Protective clothing. Rinse and then wash skin with water and soap.  •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 Do not eat, drink, or smoke during work. Wash hands before eating. Rinse mouth. Refer for medical attention. SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING Do NOT wash away into sewer. Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. (Extra personal protection: P2 filter respirator for harmful particles). Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs. Do not transport with food and feedstuffs. Xn symbol R: 20/22-36-40-43 S: 2-36/37-46 UN Hazard Class: 6.1 SEE IMPORTANT INFORMATION ON BACK ICSC: 0099 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 ATRAZINE ICSC: 0099 I M P O R T A N T D A T A PHYSICAL STATE; APPEARANCE: COLOURLESS CRYSTALS. PHYSICAL DANGERS: CHEMICAL DANGERS: The substance decomposes on heating producing toxic fumes including hydrogen chloride, nitrogen oxides. OCCUPATIONAL EXPOSURE LIMITS: TLV: 5 mg/m3 (ACGIH 1993). OSHA PEL: none NIOSH REL: TWA 5 mg/m3 NIOSH IDLH: No data 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; on spraying or dispersing, however, much faster. EFFECTS OF SHORT-TERM EXPOSURE: The substance irritates the eyes. EFFECTS OF LONG-TERM OR REPEATED EXPOSURE: Repeated or prolonged contact may cause skin sensitization. The substance may have effects on the liver and kidneys. This substance is possibly carcinogenic to humans. PHYSICAL PROPERTIES Decomposes below boiling point: see Notes Melting point: 173-177°C Relative density (water = 1): 1.2 Solubility in water, g/100 ml at 25°C: none Vapour pressure, Pa at 20°C: very low Octanol/water partition coefficient as log Pow: 2.34 ENVIRONMENTAL DATA This substance may be hazardous to the environment; special attention should be given to plants, soil- and water organisms. N O T E S Temperature of decomposition unknown in literature. Carrier solvents used in commercial formulations may change physical and toxicological properties. Aatrex, Actinite, Aktikon, Argezin, Atazinax, Atrafaf, Atratol, Atred, Candex, Cekuzine-T, Chromozin, Crisatrina, Crisazine, Cyazin, Fenamin, Fenatrol, Gesaprim, Griffex, Hungazin, Inakor, Oleogesaprim, Pitezin, Primatol, Radazin, Strazine, Vectal, Weedex, Wonuk, Zeapos and Zeazine are trade names. Transport Emergency Card: TEC (R)-61GT7-III ADDITIONAL INFORMATION ICSC: 0099 ATRAZINE (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.