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Product Name: Atrazine
Chemical Name: 6-Chloro-N-ethyl-N’-(1-methylethyl)-1,3,5-triazine-2,4-diamine
Common Synonyms: Aatrex, Gesaprim, Primatol A
CAS Number: 1912-24-9
Recommended Uses: Herbicide, primarily for control of broadleaf and grassy weeds in crops such as corn, sorghum, and sugarcane
Manufacturer Information: Various agrochemical companies worldwide provide contact details for emergencies, product inquiries, and spill response
Emergency Phone: Access to local poison centers and manufacturer’s emergency hotlines stay critical for incident management
Hazard Classification: Acute Toxicity (Oral, Category 4), Eye Irritation (Category 2A), Skin Sensitization (Category 1)
Signal Word: Warning
Label Pictograms: Exclamation Mark, Health Hazard
Hazard Statements: Harmful if swallowed, causes eye irritation, may cause allergic skin reactions, may cause harm to aquatic environments with long-lasting effects
Precautionary Statements: Avoid contact with eyes, skin, or clothing; use personal protective equipment; prevent release to the environment; wash hands thoroughly after handling
Chemical Composition: Atrazine (active), presence of inert ingredients may vary by manufacturer or formulation
Concentration: Typically 90–99 percent Atrazine in technical grade; formulated products contain lower concentrations blended with solvents, surfactants, or fillers
Other Components: Some formulations include clay, bentonite, ethylene glycol, or mineral oils
Impurities: Trace levels of simazine, deethylatrazine, and deisopropylatrazine reported in commercial products
Inhalation: Move exposed person to fresh air. If breathing becomes difficult, provide oxygen and seek medical attention right away
Skin Contact: Remove contaminated clothing, rinse skin immediately with plenty of running water for 15–20 minutes; call a physician for irritation, rash, or persistent discomfort
Eye Contact: Rinse eyes cautiously with water for several minutes, lifting upper and lower lids. Remove contact lenses. Continue rinsing and seek medical help if irritation persists
Ingestion: Do not induce vomiting unless instructed by medical personnel; rinse mouth; call poison control or a healthcare provider promptly
General Advice: Have product container or safety data sheet available when seeking medical help
Suitable Extinguishing Media: Dry chemical, carbon dioxide, foam, or water spray; most effective for extinguishing flames involving organic herbicides
Fire Hazards: Burning may produce toxic fumes like nitrogen oxides, hydrogen chloride, and carbon monoxide
Protective Equipment: Full protective gear and self-contained breathing apparatus preferred for fire situations
Specific Hazards: Runoff from fire control may pollute water sources; containment of contaminated water required
Special Procedures: Keep unnecessary personnel away, cool exposed containers with water spray, avoid inhaling combustion products
Personal Protection: Wear chemical-resistant gloves, safety goggles, and protective clothing; avoid breathing dust, vapor, or mist
Environmental Precautions: Stop leak if safe, prevent product from entering drains, ditches, or waterways
Cleanup Methods: Absorb spill with earth, sand, or other inert material; sweep or scoop into sealable containers for disposal; decontaminate area with soap and water
Waste Disposal: Dispose collected material following local, regional, and national regulations
Notification: In case of large spills or releases into environment, notify proper regulatory authorities immediately
Safe Handling: Use in well-ventilated areas, keep container closed when not in use, avoid eating, drinking, or smoking during handling, wash hands after use
Storage Requirements: Store in original, labeled containers away from foodstuffs, animal feed, or water sources
Conditions to Avoid: Excess heat, direct sunlight, moisture, and incompatibles like strong oxidizers or acids
Incompatibilities: Strong acids, strong bases, oxidizing materials
Special Precautions: Regularly inspect containers for leaks, keep out of reach of children and unauthorized persons
Exposure Limits: OSHA PEL not established for pure atrazine; ACGIH recommends limiting workplace exposure
Engineering Controls: General exhaust ventilation and local exhaust at points of dust or vapor generation
Personal Protective Equipment: Nitrile or neoprene gloves, protective goggles, chemical-resistant coveralls, if required a certified respirator
Hygiene Measures: Thorough hand washing after handling, remove contaminated clothing and wash before reuse
Environmental Controls: Stop chemical from entering sewers or water sources during cleaning or waste handling
Appearance: White crystalline solid or powder in pure form, off-white in technical grade
Odor: Faint, characteristic odor
pH: 4.0 to 7.0 in aqueous suspension
Solubility: Low solubility in water (about 30 mg/L at 20°C), increases in organic solvents
Melting Point: 175°C (decomposes above 200°C)
Boiling Point: Decomposes before boiling
Vapor Pressure: Low (about 4 × 10-7 mm Hg at 25°C)
Density: 1.187 g/cm³
Flash Point: Not highly flammable, but dust explosion possible
Partition Coefficient (Log Kow): 2.61
Decomposition Temperature: Above 200°C releases toxic gases
Chemical Stability: Stable under recommended storage and normal environmental conditions
Conditions to Avoid: Extreme heat, open flame, and extended exposure to sunlight
Reactivity: Inert with most materials under normal use, decomposes under strong acidic or basic conditions
Hazardous Decomposition Products: Nitrogen oxides, hydrogen chloride, cyanuric acid, and carbon monoxide
Polymerization: Will not occur under proper storage conditions
Acute Toxicity (Oral): LD50 (rat) 1,100–3,080 mg/kg
Skin Contact: Slightly irritating, may cause allergic reaction in some individuals
Eye Contact: Moderate irritant
Inhalation: Low to moderate acute toxicity
Chronic Effects: Some studies link atrazine exposure to hormone disruption and reproductive system changes in laboratory animals
Carcinogenicity: IARC lists atrazine as not classifiable (Group 3); US EPA identifies no human carcinogenic evidence; animal studies show mixed data
Other Effects: Occupational exposure can result in skin rashes, respiratory irritation, and rare systemic poisoning
Ecotoxicity: Harmful to aquatic life; LC50 for fish from 4 to 80 mg/L, toxic to amphibians
Persistence and Degradability: Moderately persistent in soil (half-life varies widely, often 30–100 days), potential to leach into groundwater under certain conditions
Bioaccumulation Potential: Low bioconcentration in aquatic organisms, tends not to biomagnify
Mobility: Tendency to move through soil, especially sandy or low-organic soils, raises risk of contamination for groundwater in sensitive areas
Other Adverse Effects: Interferes with aquatic primary producers and invertebrates, may disrupt community balance
Waste Methods: Dispose following legislation for hazardous wastes at approved chemical disposal facilities
Container Disposal: Triple rinse containers, puncture, and offer for recycling or proper landfill placement according to local requirements
Unused Product: Utilize registered collection or return programs for disposal, never flush to sewer or uncontaminated land
Precautions: Waste handling should protect workers and prevent environmental release
UN Number: UN 3077
Proper Shipping Name: Environmentally Hazardous Substance, Solid, N.O.S. (contains Atrazine)
Transport Hazard Class: 9 (Miscellaneous Dangerous Substances and Articles)
Packing Group: III
Marine Pollutant: Yes
Special Provisions: Keep containers tightly closed, secure during transit, comply with all regional regulations for hazardous materials transport
US EPA: Registered pesticide, subject to Restricted Use Pesticide (RUP) status; maximum application rates and restricted crop uses apply
EU Legislation: Banned or highly restricted in many EU countries due to groundwater contamination risks
OSHA: Not currently assigned a specific occupational exposure limit
Other Regulatory Agencies: States may set additional restrictions; Australia, Canada, and Latin American countries each have their own compliance requirements
Product Labeling: Compliance with Globally Harmonized System (GHS) hazard symbols, signal words, and statements required on packaging and shipping documents
