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Material Safety Data Sheet for Ammonium Nitrate Fertilizer (Enhanced Combustibility, Combustible Content >0.2%, Organic Matter as Carbon, No Additional Additives)

Identification

Product Name: Ammonium Nitrate Fertilizer (Enhanced Combustibility)
Chemical Formula: NH4NO3 with organic combustible content greater than 0.2% (as carbon)
Common Use: Agricultural soil nutrient, high-nitrogen fertilizer, sometimes used in explosives manufacturing
Manufacturer: Name, location, contact telephone, emergency contact number
Recommended Uses: Fertilizer application, not suited for food, drug, feed use
Restrictions: Unsuitable for use near open flames, high heat, or incompatible chemical storage

Hazard Identification

Classification: Oxidizing solid, explosive when mixed with significant organic content, serious eye irritant, hazardous to health on ingestion or inhalation
Hazard Statements: May intensify fire, explosive risk with combustible material, contact with skin or eyes may cause irritation, inhalation of dust can damage respiratory tract, presents acute toxicity when ingested
Pictograms: Flame over circle (oxidizer), exploding bomb (explosive risk), exclamation mark (irritant)
Signal Word: Danger
Precautionary Statements: Avoid heat, sparks, open flames, and hot surfaces, wear protective gloves and eye protection, do not breathe dust, store separately from fuels and reducing agents

Composition / Information on Ingredients

Component: Ammonium nitrate
Chemical Identity: NH4NO3
CAS Number: 6484-52-2
Organic Combustible Content: Organic matter as carbon, >0.2%, measured as total available combustible carbon mixed throughout the product
Impurities: May contain trace minerals inherent from production (iron, magnesium, trace organics from extraction process)
Stabilizers/Additives: No stabilizers or additional additives included

First Aid Measures

Inhalation: Remove person to fresh air, keep at rest, seek medical attention for symptoms like coughing, trouble breathing, or chest pain
Skin Contact: Wash skin thoroughly with water and mild soap, remove contaminated clothing, seek medical advice if irritation persists
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present, continue rinsing, consult physician if irritation continues
Ingestion: Rinse mouth, do not induce vomiting, seek immediate medical help, monitor for cramps, vomiting, or unusual symptoms
Emergency Symptoms: Shortness of breath, skin burns, severe eye irritation, abdominal pain

Fire-Fighting Measures

Suitable Extinguishing Media: Large amounts of water (preferably spray or fog), avoid use of dry chemicals or foams due to incompatibility
Fire Hazards: Intense oxidizer, may detonate or accelerate fire when contaminated with fuels or organic material, toxic fumes of nitrogen oxides can be released
Protective Equipment: Full fire and chemical-resistant protective clothing, self-contained breathing apparatus
Special Procedures: Evacuate area if fire reaches material, cool containers exposed to fire, do not allow firefighting water to enter drains or watercourses

Accidental Release Measures

Personal Precautions: Evacuate unnecessary personnel, ventilate area, use dust-proof goggles and gloves, prevent inhalation of dust
Environmental Precautions: Avoid discharge to drains, watercourses, and soil due to risk of water contamination
Containment: Sweep up without creating dust, collect in suitable containers for disposal, remove sources of ignition, prevent access to combustibles
Clean-up Methods: Remove using non-sparking tools, wash area with copious amounts of water, conduct atmospheric monitoring for nitrogen oxides post-cleanup

Handling and Storage

Handling: Handle with care to avoid dust generation, avoid impact, friction, or rough handling, keep away from incompatible materials such as fuels, oils, strong acids, and reducing agents
Storage Conditions: Store in a cool, dry, well-ventilated area with temperature controls below 30°C, use clearly labeled, corrosion-resistant, sealed containers
Segregation: Keep away from combustibles, organic materials, and sources of heat or flame, do not store near explosives or flammable substances, secure containers to prevent tipping or spillage
Technical Controls: Use explosion-proof lighting and electrical equipment, enforce strict smoking and flame bans, monitor for contamination regularly

Exposure Controls and Personal Protection

Exposure Limits: Occupational exposure limit for ammonium nitrate dust: 10 mg/m³ (8-hour TWA), keep organic particulates minimized
Engineering Controls: Local exhaust ventilation, dust suppression systems, atmosphere monitoring for hazardous gases like nitrogen oxides
Personal Protective Equipment: Chemical resistant gloves, safety goggles, dust mask or respirator conforming to EN149 or NIOSH N95 or better, long sleeves and pants
Hygiene Measures: Wash hands thoroughly after use, separate work clothing from street clothing, avoid eating, drinking, or smoking during handling

Physical and Chemical Properties

Appearance: White, off-white, or grayish crystalline granules or prills, may exhibit slight yellow/brown tinge due to organic content
Odor: Mild, faint ammonia odor detectable in large quantities
Molecular Weight: 80.04 g/mol for NH4NO3; variable for mixed organic matter
Melting Point: 169.6°C (decomposes on heating above 210°C), presence of organic matter may reduce decomposition onset
Density: 1.72 g/cm³ (bulk density varies by form and organic content)
Solubility in Water: 1500 g/L at 20°C, highly soluble
Decomposition Products: Nitrous oxide, nitrogen dioxide, nitric oxide, water vapor, carbon oxides if organic matter present
Explosive Properties: Detonable under confinement, especially with elevated organic carbon above 0.2%
Combustion Support: Strong oxidizer, will vigorously support combustion, especially near flammable substances

Stability and Reactivity

Chemical Stability: Stable under cool, dry, well-ventilated storage, decomposes at elevated temperatures or in presence of strong acids or contaminants
Reactivity: Contact with combustible materials can cause violent reaction or explosion, risk increases with presence of organic matter
Conditions to Avoid: Heat, moisture, shock, friction, contamination with organic matter or reducing agents, open flames
Incompatible Materials: Fuel oils, charcoal, sulfur, powdered metals, strong acids (especially sulfuric), alkalis, other fertilizers like urea
Hazardous Decomposition: Nitrogen oxides, ammonia, carbon monoxide, carbon dioxide in fire situations, dense poisonous smoke possible

Toxicological Information

Routes of Exposure: Inhalation, ingestion, skin and eye contact
Acute Effects: Dust can irritate respiratory tract, may cause coughing, sore throat, or lung inflammation; ingestion leads to nausea, vomiting, abdominal pain
Chronic Effects: Prolonged exposure may increase risk of methemoglobinemia (reduced blood oxygen), dermatitis from skin contact, damage to mucous membranes
LD50 (Oral, Rat): 2217 mg/kg for pure ammonium nitrate, toxicity increases with greater organic content due to possible nitro-organic by-products
Carcinogenicity: Not classified as carcinogenic, but decomposition products like nitrogen oxides are suspected respiratory carcinogens
Sensitization: No definitive studies on ammonium nitrate, risk increased by organic impurities

Ecological Information

Environmental Hazards: Highly soluble, contributes to nutrient loading in water, major factor in algal blooms and aquatic oxygen depletion
Aquatic Toxicity: LC50 for fish: 447 mg/L/48h (ammonium nitrate), pollutants increase risk when carbon and organic content are present
Persistence and Degradability: Breaks down to ammonia and nitrate, highly mobile in soil and groundwater, potential to leach and contaminate drinking water
Bioaccumulation: Not likely for ammonium nitrate, but organic contaminants may bioaccumulate
Impact on Flora/Fauna: Induces eutrophication, disrupts aquatic ecosystems, threatens amphibians and fish habitats

Disposal Considerations

Waste Treatment: Collect and treat waste with authorized hazardous waste handlers, incineration in controlled facilities recommended, never dispose with combustibles or municipal garbage
Product Disposal: Neutralize with copious water, dilute sufficiently, dispose in accordance with local regulations
Packaging Disposal: Triple rinse containers, render unusable before recycling or disposal, follow legal guidelines for hazardous containers
Special Precautions: Prevent product or residues from entering soil, sewers, streams

Transport Information

UN Number: UN 2067 (Ammonium nitrate fertilizers)
Proper Shipping Name: Ammonium nitrate based fertilizer (with combustible carbon content exceeding 0.2%)
Hazard Class: 5.1 (oxidizer), may also be classified under 1.1D (explosives) when carbon content or contaminants are present
Packing Group: III (lower hazard within oxidizers, elevated with increased combustibility)
Labels Required: Oxidizing agent; keep away from flammable cargo
Transport Conditions: Temperature-controlled containers, avoid rough handling, secure loads to prevent shifting or damage
Special Provisions: Segregation required from fuels, foodstuffs, feed, strong acids, avoid mixing with bulk organic loads

Regulatory Information

Classification: Hazardous chemical under OSHA/HCS (United States), classified as dangerous goods by UN and IMDG regulations, subject to tiered reporting under EPA, recognized as a component in security-sensitive ammonium nitrate regimes
Environmental Restrictions: Controlled under EU REACH restrictions on fertilizer manufacturing, storage, and sales; national environmental agencies regulate discharge and use in agricultural sectors
Reporting Requirements: Facilities handling above threshold quantities must submit safety, risk, and emergency plans to authorities, covered under chemical accident prevention and anti-terror directives
Labeling: Clearly marked as oxidizer and explosive, multi-language warning and danger statements, safety data access required for all handlers
Special Security Laws: Restricted purchase and use for unlicensed buyers in many countries, periodic audits of usage and storage, background checks for bulk sales above specified volumes