Material Safety Data Sheet: Melamine Polyphosphate

Identification

Product Name: Melamine Polyphosphate
Chemical Formula: (C3H6N6)n·(H3PO4)m
CAS Number: 218768-84-4
Synonyms: MPP
Intended Use: Flame retardant for plastics and coatings, fire suppression agent
Supplier Details: Manufacturer and address as found on product container; contact number for emergencies
Recommended Restrictions: Industrial use only, avoid consumer-grade applications

Hazard Identification

GHS Classification: Not classified as hazardous under GHS
Label Elements: No signal word, no hazard pictograms required
Hazard Statement: Inhalation of dust may cause mild respiratory irritation, eyes may become irritated with contact
Precautionary Statements: Wear protective equipment to avoid dust; avoid release into the environment; wash after use
Potential Health Effects: Short-term exposure may lead to skin or respiratory discomfort; long-term effects show little evidence of chronic harm
Environmental Impact: Presents low risk for bioaccumulation, breakdown in soil and water is slow

Composition / Information on Ingredients

Chemical Identity: Melamine Polyphosphate
Concentration: 98-100%
Impurities: Phosphoric acid residue below 0.5%, water less than 1.0%, free melamine below 1.0%
Additives: No significant additives declared by manufacturer
Hazardous Ingredients: None above permissible exposure levels according to OSHA

First Aid Measures

Inhalation: Move person to fresh air, encourage breathing without force, monitor for discomfort
Skin Contact: Remove contaminated clothing, rinse skin with soap and water, watch for persistent irritation
Eye Contact: Rinse with water for at least fifteen minutes, open eyelids to maximize water flow, seek medical attention if irritation continues
Ingestion: Rinse mouth with water, do not cause vomiting, get medical advice for large quantities
Symptoms and Effects: Irritation, coughing, redness on skin or eyes
Recommended Medical Attention: Give supportive care, no antidote required

Fire-Fighting Measures

Suitable Extinguishing Media: Dry powder, foam, carbon dioxide, water spray
Unsuitable Media: High-pressure water jets may spread product
Fire Hazards: Material is not highly flammable, but thermal decomposition forms nitrogen oxides, phosphorous oxides, ammonia
Protective Equipment: Full bunker gear, self-contained breathing apparatus
Special Procedures: Avoid inhaling smoke or gases, isolate area, cool containers

Accidental Release Measures

Personal Precautions: Use dust mask, goggles, work gloves, long sleeves, limit breathing of airborne particles
Emergency Procedures: Evacuate unnecessary personnel, ventilate area, prevent material from reaching water or soil
Containment: Use barriers, pick up dry material, avoid sweeping or using compressed air
Cleanup Methods: Shovel into sturdy container for reclamation or disposal, use HEPA-filtered vacuum for fine dust
Disposal: Dispose of as non-hazardous industrial waste according to local, state, and federal laws

Handling and Storage

Safe Handling: Minimize dust generation, keep material sealed in original packaging, avoid eating, drinking, or smoking during use
Hygienic Practices: Wash hands and exposed skin after work, remove contaminated clothing
Storage Conditions: Keep dry, cool, away from strong acids, bases, oxidizing agents
Incompatibles: Do not store with acids or oxidizers; moisture may cause clumping or slow breakdown
Storage Life: Stable under recommended conditions for at least two years

Exposure Controls and Personal Protection

Occupational Exposure Limits: No OSHA PEL; NIOSH recommended limit 10 mg/m³ (total dust)
Engineering Controls: Use local exhaust ventilation, dust collection systems, closed process handling
Personal Protective Equipment (PPE): Safety goggles, N95 or higher respirator, nitrile or latex gloves, lab coat or coveralls
Environmental Controls: Avoid release to waterways or sewers, handle in compliance with local environmental regulations

Physical and Chemical Properties

Appearance: White, odorless, crystalline powder
Odor Threshold: Not established
pH (1% in water): 6.5-7.5
Melting Point: Above 300°C (decomposition)
Boiling Point: Not applicable
Flash Point: Not flammable in standard conditions
Solubility: Less than 2 g/L in water at 25°C
Density: 1.6-1.8 g/cm³
Partition Coefficient: Not available
Vapor Pressure: Negligible at ambient temperature
Other Data: No explosive properties, slow decomposition under strong heat

Stability and Reactivity

Chemical Stability: Stable at room temperature, remains unchanged under ordinary conditions
Hazardous Reactions: No violent reactions reported under normal use
Decomposition: High temperatures may release toxic gases (phosphorous oxides, ammonia)
Incompatibilities: Acids, alkalis, oxidizers accelerate breakdown
Polymerization: Will not occur spontaneously

Toxicological Information

Acute Toxicity: Oral LD50 (rat) above 2000 mg/kg, minimal risk from incidental oral or skin exposure
Skin Corrosion: Mild temporary irritation in unbroken skin, no evidence of corrosivity
Eye Effects: Possible redness or discomfort, short-lived
Respiratory Risks: Inhalation of dust may trigger coughing or throat discomfort, no chronic respiratory toxicity reported
Long-term Effects: No carcinogenic, mutagenic or reproductive toxicity shown in animal trials
Routes of Exposure: Inhalation, skin, eye, ingestion

Ecological Information

Aquatic Toxicity: Low hazard, LC50 (fish, 96h) above 100 mg/L
Degradability: Breakdown occurs slowly in soil or water, not readily biodegradable
Bioaccumulation: Low risk of significant accumulation in aquatic species
Mobility: Binds to soil, limited migration through aquatic systems
General Considerations: Care in preventing uncontrolled releases to environment remains important; monitor effluent and runoff if used in bulk

Disposal Considerations

Waste Disposal Methods: Collect unused or contaminated material; send for chemical landfill disposal, incineration not usually required
Packaging Disposal: Rinse containers if reusing or recycling, crush before sending to landfill
Regulatory Requirements: Handle according to local, regional and national requirements; US EPA non-hazardous under RCRA
Precautions: Prevent bulk material from entering natural water sources; keep away from food and animal feeds

Transport Information

UN Number: Not regulated under ADR, RID, IMDG, IATA
Transport Hazard Class: No classification as hazardous material
Packing Group: None assigned
Special Precautions: Protect from moisture, sunlight; secure to prevent shifting during transit
Labeling: Standard product label; no special hazard symbols or documentation required

Regulatory Information

TSCA Status: Listed on the United States Toxic Substances Control Act Inventory
REACH Registration: Registered or exempt under EU REACH regulations
Other International Regulations: Listed or notified under China IECSC, Japan ENCS, South Korea KECL, Australia AICS
OSHA Compliance: Not classified hazardous under workplace hazard communication standard
Workplace Labelling: Follow site-specific workplace safety and chemical hygiene plans; keep material identified and segregated