Product Name: Melamine Cyanurate Flame Retardant
Chemical Name: Melamine Cyanurate
Synonyms: MCA, Melamine Cyanurate Complex
Recommended Use: Flame retardant additive for polymers, textiles, and electrical equipment
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Classification: Not classified as hazardous according to OSHA, GHS, or EU criteria
Signal Word: No signal word required
Hazard Statements: May cause minor irritation to eyes, skin, or respiratory tract after direct contact with dust
Pictograms: No pictograms assigned
Precautionary Statements: Avoid generating or breathing dust, use personal protection if dusty conditions occur, prevent contact with eyes and skin
Potential Health Effects: Prolonged inhalation of dust can irritate respiratory system
Chemical Composition: Melamine Cyanurate (CAS No. 37640-57-6), purity typically >99%
Impurities: Minimal impurities related to manufacturing process, generally under 1%
Other Additives: No intentionally added substances or stabilizers
Inhalation: Move to fresh air, keep person calm, seek medical attention if symptoms like coughing, wheezing, or shortness of breath persist
Skin Contact: Wash thoroughly with soap and water, remove contaminated clothing, seek medical advice if irritation appears or continues
Eye Contact: Immediately rinse with running water for several minutes, do not rub, remove contact lenses if present and easy to do, consult healthcare if discomfort lingers
Ingestion: Rinse mouth with water, drink small amount of water, do not induce vomiting, contact a physician if feeling unwell or discomfort persists
Notes to Physician: Treat symptoms, no antidote known
Suitable Extinguishing Media: Use water spray, dry chemical, carbon dioxide, or foam for extinguishing
Unsuitable Extinguishing Media: Strong water jets may create dust clouds and spread material
Special Hazards: Product will not ignite easily, but dust can form explosive mixtures with air in rare cases; decomposition releases CO, CO2, nitrogen oxides, and cyanuric compounds
Protective Equipment for Firefighters: Full protective gear, self-contained breathing apparatus for confined spaces or heavy smoke
Special Instructions: Move containers away from fire area if safe, prevent run-off from fire control entering drains or watercourses
Personal Precautions: Wear dust mask, gloves, and protective glasses to prevent irritation, avoid breathing dust
Environmental Precautions: Prevent material from entering drains, surface waters, or soil since untreated waste can cause localized disruption
Methods for Containment and Clean-Up: Scoop or sweep up carefully without generating dust, collect in tightly sealed containers for disposal, use industrial vacuum if possible, ventilate area thoroughly, wash spill site with water after removal
Disposal of Collected Material: See “Disposal Considerations” for further details
Precautions for Safe Handling: Always handle in areas with good ventilation, avoid creating dust, do not eat, drink, or smoke near product, wash hands after handling
Safe Storage Conditions: Store in cool, dry, well-ventilated place, keep container tightly closed, keep away from strong acids, oxidizers, and incompatible substances, avoid moisture to prevent caking or clumping
Packaging Materials: Use original packaging or compatible secondary containers, keep away from food and beverages
Handling Bulk Quantities: Use local exhaust or dust extraction if processing on a large scale
Occupational Exposure Limits: No official limits assigned for melamine cyanurate, but general dust exposure limit (e.g., ACGIH TLV for nuisance dust at 10 mg/m³ total dust, 3 mg/m³ respirable fraction) should be respected
Engineering Controls: Use local exhaust and general ventilation to reduce airborne dust
Personal Protective Equipment: Wear protective eyewear (goggles or glasses), gloves (nitrile or PVC), dust mask or N95 respirator for dusty work, wear coveralls or lab coat
Hygiene Measures: Wash hands, arms, and face after exposure or before eating, change clothes if heavily contaminated
Appearance: Fine white or slightly off-white powder
Odor: Mild or nearly odorless
Odor Threshold: Not established
pH: Slightly acidic in water suspension (pH 5.5-7)
Melting Point/Freezing Point: Decomposes above 330°C, does not have a clear melting point due to decomposition
Boiling Point/Range: Not applicable (solid, decomposes before boiling)
Flash Point: Not flammable
Evaporation Rate: Not relevant
Flammability: Not considered flammable
Vapor Pressure: Negligible
Vapor Density: Not relevant
Relative Density: 1.6–1.8 g/cm³
Solubility: Insoluble in water, slightly soluble in strong acids
Partition Coefficient (n-octanol/water): Not determined
Autoignition Temperature: Not self-igniting
Decomposition Temperature: Above 330°C
Viscosity: Not applicable (powder)
Other Information: Forms dust easily if handled carelessly
Reactivity: Stable under recommended storage and handling conditions, not sensitive to shock
Chemical Stability: Stable in dry air, may absorb moisture from air over time
Hazardous Reactions: Contact with strong acids or bases may decompose product, forming gases like ammonia and cyanuric acid
Hazardous Decomposition Products: Ammonia, cyanic compounds, nitrogen oxides, carbon monoxide, carbon dioxide at high temperatures
Incompatible Materials: Avoid contact with oxidizers, strong acids, and bases
Polymerization: Does not polymerize spontaneously
Acute Toxicity: Oral LD50 (rat) >2,000 mg/kg, not considered toxic by ingestion, low acute toxicity
Skin Corrosion/Irritation: Not corrosive, mild irritation from mechanical dust may occur
Serious Eye Damage/Irritation: Dust contact can lead to temporary redness or discomfort
Respiratory or Skin Sensitization: Unlikely to cause allergy or asthma, but dust can irritate airway
Germ Cell Mutagenicity: Not known to cause genetic changes
Carcinogenicity: Not listed by NTP, IARC, OSHA as a known or probable carcinogen
Reproductive Toxicity: Not known to affect reproductive health in humans or animals at workplace exposures
Specific Target Organ Toxicity (Single / Repeated Exposure): No data showing long-term harm from repeated workplace contact
Aspiration Hazard: No aspiration toxicity noted due to physical form
Ecotoxicity: Not readily toxic to fish, daphnia, or algae based on standard aquatic tests, though excessive spillage can cause local harm by reducing oxygen in water systems
Persistence and Degradability: Not quickly broken down by natural processes, but not likely to bioaccumulate in major food chains
Bioaccumulative Potential: Has low bioaccumulation potential due to low solubility in water and fats
Mobility in Soil: Moves very slowly in soil due to poor water solubility
Other Adverse Effects: No evidence of long-term environmental threat, periodic release should be controlled to avoid soil or surface water disruption
Waste Handling: Avoid generating dust during disposal, collect in sealed, labeled containers
Local Disposal Regulations: Dispose of at approved waste treatment plant or authorized landfill following local laws
Recycling or Reuse: Recovery for use as filler or flame retardant in approved applications may be possible
Packaging Disposal: Rinsed bags or drums can be recycled if free of residue, otherwise handle as solid industrial waste
Preventing Contamination: Never discharge into sewers or environment, keep waste contained during shipment
UN Number: Not classified as dangerous for transport by land (DOT), sea (IMDG), or air (IATA)
Proper Shipping Name: Melamine Cyanurate, not regulated
Transport Hazard Class: Not assigned
Packing Group: Not assigned
Environmental Hazards: None specific, but avoid release during transit
Special Precautions for User: Protect containers from breaks, keep dry and well sealed, use dust-proof packaging
US Regulations: Not specifically listed by TSCA as a hazardous substance, follows OSHA workplace dust regulations
EU Regulations: REACH compliant for polymer applications, not listed under CLP as hazardous
Other International Regulations: Not regulated as a dangerous good by transport agencies worldwide
Labeling Requirements: Standard workplace chemical labeling, precautionary symbols if required for large volume areas
Other Notes: Review local, regional, and national chemical safety regulations as they may impose requirements in specific industrial applications or geographies
