Product Name: Melamine Cyanurate
Chemical Formula: C6H9N9O3
CAS Number: 37640-57-6
Use: Used as a flame retardant in plastics, electronics, textiles
Manufacturer/Supplier: Listed on product label; for any batch-specific details, supplier’s SDS provides origin and emergency contact
Contact Information: Includes office location, emergency phone numbers for fire, exposure, transportation issues
Synonyms: MCA, Melamine cyanuric acid salt, Melamine cyanurate complex
GHS Classification: Not classified as hazardous under GHS
Hazard Symbols: No pictogram needed, commonly handled as a low-toxicity powder
Potential Health Effects: Inhalation of dust can irritate respiratory system; skin or eye contact may lead to minor irritation for sensitive individuals
Environmental Risks: No significant acute or chronic aquatic toxicity reported, but dust should not be released in large quantities
Precautionary Statements: Avoid breathing dust; wear safety glasses; keep away from food and drink
Other Hazards: Combustion releases nitrogen oxides and cyanuric acid; fine powder may cause a slipping hazard on smooth floors
Chemical Identity: Melamine Cyanurate
Content: >99% Melamine cyanuric acid complex
Impurities: Minor traces of unreacted melamine or cyanuric acid, generally <0.5%
Mixtures: Not a mixture, single compound material typically supplied
EC Number: 253-575-7
General Advice: Remove from exposure and seek fresh air immediately when dust becomes airborne
Inhalation: Move to fresh air zone; rinse mouth with water, call for medical attention if symptoms persist
Skin Contact: Wash thoroughly with soap and water; remove contaminated clothing
Eye Contact: Rinse eyes gently for at least 15 minutes, lift eyelids to flush out particles
Ingestion: Rinse mouth, drink water; if feeling unwell, seek medical advice, avoid inducing vomiting
Symptoms to Watch For: Persistent coughing, eye watering, skin rash, or trouble breathing
Suitable Extinguishing Media: Water spray, dry chemical powder, foam, carbon dioxide
Unsuitable Extinguishing Media: Strong directed streams in enclosed spaces may spread dust
Special Protective Equipment: Firefighters should use self-contained breathing apparatus
Fire/Explosion Hazards: Material is generally non-flammable, but forms nitrogen oxides and low levels of cyanuric acid decomposition fumes in fire
Advice for Firefighters: Prevent runoff from entering water sources as a precaution, evacuate all personnel from downwind area
Decomposition: Burns at high temps creating melamine-related nitrogenous byproducts
Personal Precautions: Use dust mask or respirator, goggles, and gloves; avoid raising dust
Environmental Precautions: Prevent large amounts from runoff into drains or natural waters
Containment: Sweep or vacuum up spills, avoid using compressed air
Clean-Up Procedures: Collect in proper containers for disposal; wet wipe area after cleanup to minimize dust
Emergency Procedures: Ventilate area, prevent unnecessary traffic, notify supervisors of spill
Disposal: Small spills go into waste containers; large spills need hazardous waste disposal labeling
Handling: Use precautions against dust formation; operate local exhaust ventilation if powder use exceeds minor quantities; wear personal protective gear
Storage: Keep container closed in cool, dry, ventilated area away from moisture and strong oxidizers; store in labeled containers
Conditions to Avoid: Avoid exposing to strong acids, alkalis, and open flames
Hygiene Practices: Wash hands after handling, do not eat or smoke in storage/handling areas
Incompatible Materials: Avoid strong oxidants and solvents which may degrade the container
Occupational Exposure Limits: No national or ACGIH limits, but treat as nuisance dust (10 mg/m³ total dust, 3 mg/m³ respirable)
Engineering Controls: Use local exhaust ventilation; work in well-ventilated zones
Personal Protective Equipment: Wear NIOSH-approved dust mask, safety glasses with side shields, nitrile or cotton gloves, lab coats
Eye/Face Protection: Use safety goggles or shield
Skin Protection: Use gloves and long-sleeved clothing when handling bulk quantities
Respiratory Protection: Use dust mask/respirator if exposure limit approaches occupational threshold
Environmental Protection: Use closed transfer systems and proper waste management to avoid environmental release
Appearance: White fine powder or crystalline solid
Odor: Odorless
Melting Point/Freezing Point: Decomposes above 345°C, no melting point in standard pressure
Boiling Point: Not applicable (decomposes)
Vapor Pressure: Not volatile
Solubility: Insoluble in water, slightly soluble in acidic and basic solutions
Density: 1.5 – 1.7 g/cm³
pH (1% Suspension): 6.0–8.0
Flash Point: Not flammable in standard lab settings
Partition Coefficient: Not determined, but low mobility in soil predicted
Other Data: No explosive or oxidizing properties under normal handling
Stability: Stable under normal temperatures and pressures
Reactivity: Unreactive with common laboratory materials; possible reaction with strong acids, alkalis generating ammonia or triazine derivatives
Hazardous Decomposition Products: At high temperatures releases melamine, cyanuric acid, nitrogen oxides
Polymerization: Not expected to occur
Incompatibilities: Strong oxidants, reducing agents, acids, strong bases
Acute Toxicity: Practically non-toxic by oral, dermal, or inhalation routes; animal studies show LD50 (rat, oral) >5,000 mg/kg
Irritation: Mild skin and eye irritation possible, especially with pre-existing allergies
Sensitization: No known sensitizing effects reported
Chronic Effects: No evidence of carcinogenic, mutagenic, or reprotoxic properties found in animal or in vitro studies
Routes of Exposure: Dust inhalation, skin and eye contact
Long-Term Effects: Prolonged overexposure leads mostly to mild inflammation or dryness
Additional Info: Not listed as carcinogen by IARC, NTP, or OSHA
Ecotoxicity: Low aquatic toxicity; LC50 (fish, 96h) >100 mg/L, EC50 (daphnia, 48h) >100 mg/L
Persistence and Degradability: Not readily biodegradable but not bioaccumulative; inert in soil and sediment
Mobility: Binds to organic matter, not expected to migrate in groundwater
Bioaccumulation: No potential for bioaccumulation reported in standard models
Other Adverse Effects: Large releases may create sedimentation issues in waterways; always manage waste responsibly
Waste Disposal Methods: Place material in tightly closed labeled containers; send to approved incineration or landfill facility
Container Disposal: Triple rinse containers, remove labels, discard according to local hazardous waste regulations
Precautions: Do not allow into natural waterways, drains, or sewers
Reuse: Avoid recycling containers that held the product unless decontaminated
UN Number: Not regulated for transport
Proper Shipping Name: Melamine cyanurate, non-hazardous
Transport Hazard Class: Non-hazardous; no special requirements for air, land, or sea
Packing Group: Not assigned
Labels: No required transport symbols
Special Precautions: Secure packaging to minimize dust generation, avoid container rupture in transit
EU Regulation: Not classified as hazardous under Regulation (EC) No 1272/2008 (CLP/GHS)
US Regulations: TSCA inventory listed; not regulated as hazardous under SARA Title III, CERCLA
Canadian Regulations: DSL/NDSL listed
Other National Inventories: Registered in relevant markets (Japan ENCS, Australia AICS)
Worker Protection: Standard occupational hygiene required; no exposure-specific regulations
