Atrizine

  • 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
Formula C8H14ClN5
Structure
Description White crystalline solid.
Uses Atrazine is a widely used selective herbicide for control of broadleaf & grassy weeds. Atrazine also is used as a nonselective herbicide for vegetation control in noncrop land.

Registry Numbers and Inventories.
CAS 1912-24-9
EC (EINECS/ELINCS) 217-617-8
EC Index Number 613-068-00-7
EC Class Harmful; Sensitising; Dangerous for the Environment
RTECS XY5600000
RTECS class Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Reproductive Effector; Primary Irritant
UN (DOT) 2763
Merck 12,902
Beilstein/Gmelin 612020
EPA OPP 80803
Swiss Giftliste 1 G-1197
Canada DSL/NDSL DSL
US TSCA Listed
Austrailia AICS Listed
New Zealand Listed
Japan ENCS (MITI) Listed

Properties.
Formula C8H14ClN5
Formula mass 215.69
Melting point, °C 171-174
Boiling point, °C 369
Vapor pressure, mmHg 1.3E-5 (25 C)
Vapor density (air=1) 1.187
Density 1.2 g/cm3 (20 C)
Solubility in water Insoluble
pKa/pKb 12.32 (pKb)
Partition coefficient, pKow 2.61
Heat of vaporization 61.5 kJ/mol
Heat of combustion -4713 kJ/mol

Hazards and Protection.
Storage Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation. Wash clothing before reuse.
Protection Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use. Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.
Small spills/leaks Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.
Stability Stable at room temperature in closed containers under normal storage and handling conditions.
Incompatibilities Strong acids, strong bases.
Decomposition Hydrogen chloride, nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Fire.
Flash Point,°C 176
Fire fighting Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Substance is nonflammable. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.
Fire potential Nonflammable.
Combustion products Irritating hydrogen chloride and toxic oxides of nitrogen may be formed.
NFPA Health 1
  Flammability 0  
  Reactivity 0  

Health.
Exposure limit(s) TLV: ppm; 5 mg/m3 (ACGIH 1993-1993). NIOSH REL: TWA 5 mg/m3
Poison_Class 4
Exposure effects Effects may be delayed. Possible risk of irreversible effects.
   Ingestion May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed.
   Inhalation Causes respiratory tract irritation. May be harmful if inhaled. Can produce delayed pulmonary edema.
   Skin May cause skin irritation. May cause sensitization by skin contact.
   Eyes Causes eye irritation. May cause chemical conjunctivitis.

First aid
 
   Ingestion Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
   Inhalation Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
   Eyes Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
UN number 2763
Response guide 151
Hazard class 6.1
Packing Group I; II; III  
USCG CHRIS Code ATZ