Product Name: Mono Ammonium Phosphate
Chemical Formula: NH4H2PO4
Other Names: MAP, Ammonium Dihydrogen Phosphate
CAS Number: 7722-76-1
Recommended Uses: Fertilizer, fire extinguisher powder, food additive, laboratory reagent
Supplier Information: Company name and address (to be filled in by supplier)
Emergency Phone: Local emergency contact number
Contact Email: Supplier's or manufacturer's email
Classification: Not considered hazardous under GHS standards in normal use; dust may cause mild respiratory irritation
Physical Hazards: Combustible dust hazard if finely divided
Health Hazards: Eye and skin irritation, especially in dust form; ingestion could upset stomach; inhalation may cause coughing or discomfort
Environmental Hazards: Large releases may encourage algal growth in water; phosphate contamination of waterways must be prevented
Label Elements: No pictogram required; signal word: None; hazard statements cover mild irritation and dust inhalation risk
Chemical Name: Ammonium Dihydrogen Phosphate
Common Name: Mono Ammonium Phosphate
CAS Number: 7722-76-1
Concentration: ~99%
Impurities: May contain trace impurities (tiny amounts of silicates, sulfates, or other minerals depending on source)
Other Ingredients: Inert compounds (max 1%), usually not dangerous
Inhalation: Move to fresh air, rinse mouth with water; seek medical advice if breathing discomfort lasts
Skin Contact: Rinse skin under running water, use non-abrasive soap; seek help if irritation persists
Eye Contact: Hold eyelids open, flush with water for at least 15 minutes; remove contact lenses if present, continue rinsing
Ingestion: Rinse mouth, drink water; do not induce vomiting; get medical attention for any ongoing symptoms
Most Important Symptoms: Skin redness, eye watering, coughing from dust
Notes for Doctor: Treat symptomatically; monitor respiratory and GI symptoms
Suitable Extinguishing Media: Water spray, dry chemical, foam, carbon dioxide
Unsuitable Media: None known for this product
Specific Hazards: Thermal decomposition can release ammonia, phosphorus oxides; product itself helps suppress flames
Protective Equipment: Standard gear: gloves, goggles; self-contained breathing apparatus if lots of smoke or decomposition fumes
Firefighting Advice: Keep product cool with water sprays; avoid breathing dust or fumes; keep runoff from entering waterways
Personal Precautions: Avoid breathing dust, wear dust mask or respirator, goggles, gloves
Environmental Precautions: Keep spill out of sewers, storm drains, open water; large spills need careful clean-up to avoid phosphate pollution
Cleanup Methods: Sweep up without creating clouds of dust; use vacuum with HEPA filter if possible; put collected material in sealed containers for use or disposal
Decontamination: Rinse tools and equipment with plenty of water after clean-up
Precautions for Safe Handling: Use in well-ventilated area, avoid splashing water on dry product, keep containers tightly closed
Personal Protection: Gloves and safety glasses for dusty work; clean work clothes recommended; avoid eating or drinking near the product
Storage Conditions: Cool, dry place, away from moisture and incompatible substances (strong oxidizers, alkalis)
Special Rules: Don’t store near food or animal feed; label all containers clearly
Handling Comments: Clean up spills right away to prevent slippery floors and dust clouds
Exposure Limits: No established workplace limits for MAP, but keep dust below 10 mg/m3
Engineering Controls: Local ventilation or dust collection for powder handling; use mechanical handling equipment with covers
Personal Protective Equipment: Safety glasses, chemical-resistant gloves, dust mask (N95 or better) for significant dust exposure
Hygiene Measures: Wash hands after use, change dusty clothing; keep eye wash and clean water handy in work area
Monitor Dust: Regularly check for excessive accumulation of dust on surfaces and in the air
Appearance: White or off-white crystals or powder
Odor: Nearly odorless
Melting Point: Decomposes above 190°C
Solubility: Soluble in water
Vapor Pressure: Negligible at room temp
pH: Slightly acidic solution (pH ~4.4 for 1% solution)
Density: 1.8 g/cm3
Other Properties: Non-flammable; not volatile; no explosive ingredients
Chemical Stability: Stable under normal storage and use
Potentially Dangerous Reactions: With strong alkalis or oxidizing agents, some hazardous gases may form
Incompatible Materials: Strong bases, strong oxidizers (bleach, nitrates)
Decomposition Products: Ammonia, phosphorus oxides at high heat
Other Concerns: Stable even after long storage except for caking from moisture exposure
Routes of Entry: Inhalation, ingestion, skin and eye contact
Acute Effects: Irritation of eyes, skin, airways if heavy exposure
Chronic Effects: No long-term health effects expected from low-level exposure
Toxicity (Oral LD50): >2000 mg/kg (rat), low toxicity
Carcinogenicity: Not classified as carcinogen
Other Info: No sensitization, no mutagenicity, no reproductive toxicity shown in available studies
Ecotoxicity: High concentrations may disrupt aquatic life, mainly by promoting algae in fresh water
Persistence/Degradability: Inorganic, not biodegradable, persistent in environment but spreads out over time
Bioaccumulation Potential: Not expected to accumulate in living tissues
Mobility in Soil: Moves with water, may leach into groundwater if over-applied
Other: Avoid overuse and spills to prevent damage to rivers, lakes, and wetlands
Waste Generation: Minimize by reusing, recycling, or using entire batch if possible
Disposal Method: Sweep up uncontaminated material for reuse; send waste to licensed landfill if contaminated
Container Disposal: Triple rinse, render unusable, dispose as non-hazardous waste unless contaminated
Legal Requirements: Check local and national rules for phosphate disposal, especially large amounts
Spill Disposal: Avoid washing into drains; collect for proper landfill or hazardous waste site if needed
UN Number: Not regulated for transport in most locations
Proper Shipping Name: Not classified as hazardous for DOT/ADR/IMDG
Hazard Class: None
Packing Group: None
Labeling Requirements: None
Other Transport Precautions: Protect bags/containers from moisture and avoid container damage during loading, unloading, and transit
Safety/Health/Environmental Regulations: Subject to workplace safety, water protection, and fertilizer use limits in many countries
Reporting Requirements: Accidentally large releases might need reporting; smaller spills rarely require it
Chemical Inventory Listings: Listed in main chemical inventories (US TSCA, EU REACH, etc.)
Fertilizer Use: Rules differ in different places; users should follow local guidelines for application and runoff prevention
Other Regulatory Comments: Product not classified as hazardous chemical in most regions; always check local and national rules before storage or large-scale use
