Product Name: Melamine (Micronized)
Chemical Formula: C3H6N6
Other Names: 2,4,6-Triamino-1,3,5-triazine
Recommended Use: Used in laminates, coatings, flame retardants, adhesives, and molding compounds
Manufacturer: [Manufacturer Name, Address, and Emergency Contact Number]
Emergency Number: [24-hour emergency phone number for chemical emergencies, spill, leak, fire, exposure, or accident]
CAS Number: 108-78-1
UN Number: Not regulated as hazardous for transport by land, sea, or air in most jurisdictions
Synonyms: Cyanuramide; Triamino-s-triazine; 1,3,5-triazine-2,4,6-triamine
Classification: Eye irritant, mild skin irritant
Signal Word: Warning
Hazard Pictograms: Exclamation mark (GHS07)
Hazard Statements: May cause slight irritation to eyes, respiratory tract, and skin; dust may cause coughing or sneezing; no known carcinogenicity based on animal studies, but chronic exposure to dust can aggravate respiratory issues
Potential Routes of Exposure: Inhalation, skin and eye contact, ingestion
Chronic Effects: Prolonged or repeated exposure to dust can cause bronchitis or respiratory discomfort in sensitive individuals
Precautionary Statements: Avoid breathing dust; wash hands thoroughly after handling; use protective gloves and eyewear; operate with proper ventilation
Melamine (Micronized)
Chemical Name: Melamine
Concentration: >99%
CAS Number: 108-78-1
Impurities: Usually contains minor unreacted cyanuric acid or related triazine compounds (<1%) depending on process controls
Additives: None for product in micronized form; used as-received in most applications
Hazardous Components: No other hazardous substances present at levels to be disclosed under OSHA or EU regulations for standard production batches
Inhalation: Move individual to fresh air, keep warm and at rest, seek medical attention if symptoms persist or breathing becomes difficult; for mild irritation, rinse mouth and clear airway
Skin Contact: Remove contaminated clothing; wash affected skin thoroughly with soap and water; if skin irritation or rash develops, consult physician
Eye Contact: Rinse immediately with plenty of water for at least 15 minutes, keeping eyelids open; remove contact lenses if worn; obtain medical attention if redness or pain continues
Ingestion: Rinse mouth with water, drink small quantity of water to dilute if conscious and alert; do not induce vomiting; seek medical advice if symptoms or discomfort appear
Notes for Physicians: No specific antidote; treat symptomatically and supportively as required for dust inhalation, skin or eye irritation, or accidental ingestion; observe for delayed pulmonary symptoms in cases of large inhaled quantities
Suitable Extinguishing Media: Water spray (fog), dry chemical, foam, carbon dioxide (CO2)
Unsuitable Media: Avoid high-pressure water streams that may spread dust clouds
Hazards During Fire: Emits toxic fumes such as nitrogen oxides, ammonia, hydrogen cyanide if subjected to high heat or flame; dust may form explosive mixtures in air under certain conditions; combustion produces dense smoke
Protective Equipment: Wear full protective clothing and self-contained breathing apparatus (SCBA); ensure upwind positioning and avoid breathing smoke or dust
Special Precautions: Use water mist to cool exposed containers; containment of run-off water recommended to avoid contamination of waterways; remove containers from fire zone if safe to do so
Personal Protection: Evacuate area of unprotected personnel; avoid generating airborne dust; wear appropriate respiratory protection, safety glasses, gloves, and protective clothing
Spill Clean-Up: Sweep up with non-sparking tools, minimizing dust generation; collect in sealable containers for disposal; use industrial vacuum with HEPA filter if available
Environmental Precautions: Prevent product and contaminated water from entering drains, sewers, or waterways; notify authorities if spill poses environmental risk; large spills require containment and soil cleanup
Decontamination: Rinse affected surfaces with water, collect rinsate for disposal according to regulations
Additional Measures: Ventilate enclosed areas after cleanup; avoid dry sweeping wherever possible
Handling: Avoid contact with skin, eyes, and clothing; minimize airborne dust production by handling in closed systems or using local exhaust ventilation; no eating, drinking, or smoking during use; wash hands and exposed skin before breaks and after work
Storage Conditions: Store away from strong acids and oxidizers; keep in tightly closed containers in a cool, dry, and well-ventilated area; protect from direct sunlight and moisture; avoid temperatures above 30°C to preserve product quality
Packaging: Use original packaging or containers suitable for dry powders; label all containers clearly with product identity and hazard warnings
Incompatibilities: Reacts with strong oxidizing agents or acids (risk of decomposition, gas evolution)
Other Advice: Store away from foodstuffs and animal feed; maintain good housekeeping to prevent accumulation of dust
Exposure Limits: OSHA PEL for nuisance dust: 15 mg/m3 (total dust); ACGIH TLV: 10 mg/m3 (inhalable); local regulations may apply
Engineering Controls: Use process enclosure, local exhaust ventilation, or other engineering controls to keep airborne dust below recommended limits; install dust extraction equipment at points where dust is generated; monitor dust levels routinely
Personal Protection: Respiratory: Use NIOSH or EU approved dust mask or respirator if dust levels exceed occupational limits; Eyes: Wear chemical safety goggles or face shield to prevent eye contact; Skin: Gloves recommended, such as nitrile or PVC; wear long sleeves, long pants, and safety shoes
Hygiene Measures: Remove contaminated clothing and launder before reuse; wash hands, face, and exposed skin after handling; do not bring contaminated clothing home
Other Controls: Provide eyewash stations and emergency showers in areas of high exposure risk
Appearance: White, odorless, crystalline powder with fine particle size due to micronization; virtually non-volatile
Odor: Odorless
Molecular Weight: 126.12 g/mol
pH (slurry): 7.5–9.5 (in water solution)
Melting Point: 354°C (decomposes before melting)
Boiling Point: Not applicable (decomposes)
Flash Point: Not flammable under most test conditions
Flammability: Combustible dust may present explosion risk if dispersed in air and ignited
Vapor Pressure: Negligible at room temperature
Bulk Density: 0.5–0.8 g/cm3
Water Solubility: 3.2 g/L at 20°C (sparingly soluble)
Solubility in other solvents: Slightly soluble in hot organic solvents (e.g. methanol)
Partition coefficient (log Kow): -1.37 (low bioaccumulation potential)
Decomposition Temperature: >350°C, gives off toxic gases (nitrogen oxides, cyanuric acid, ammonia) at breakdown
Reactivity: Stable in normal conditions; non-reactive in pH range 4-10
Chemical Stability: Remains stable if kept cool, dry, and away from incompatible materials
Possibility of Hazardous Reactions: Reaction with strong acids, hypochlorites, nitrites, or oxidizers can liberate toxic gases; forms explosive dust-air mixtures
Hazardous Decomposition Products: Ammonia, nitrogen oxides, cyanuric acid, hydrogen cyanide (at very high temperatures)
Conditions to Avoid: Avoid excessive heat, sparks, open flames, moisture, strong oxidizers, acids; avoid forming airborne dust clouds in confined spaces
Incompatible Materials: Strong acids, strong oxidizing agents, sodium hypochlorite, nitrites
Acute Toxicity: Oral LD50 in rats: 3161 mg/kg (low harmfulness); no significant dermal toxicity reported
Inhalation: Overexposure to dust can cause mild, temporary irritation of throat and lungs; symptoms include coughing and sneezing
Skin Contact: Slight irritation possible, rarely causes rash or sensitization
Eye Contact: May cause mild, transient irritation—tearing, redness, discomfort
Chronic Exposure: Long-term exposure to high dust concentrations has been linked to respiratory irritation in some studies; not recognized as a carcinogen by IARC, NTP, OSHA
Mutagenicity/Carcinogenicity: Not genotoxic or carcinogenic in animal tests or human studies; not listed as a reproductive toxin
Other Effects: Not considered a skin sensitizer, not neurotoxic, not teratogenic under typical workplace exposures
Eco-Toxicity: Aquatic toxicity is low; LC50 (fish, 96h) > 100 mg/L; EC50 (daphnia, 48h) > 100 mg/L
Persistence/Degradability: Poorly biodegradable in water and soil; may persist in environments but not expected to bioaccumulate
Mobility in Soil: Limited mobility; binds to soil particles and migrates slowly; can leach to groundwater in large spills
Bioaccumulation: Log Kow of -1.37 indicates low potential for accumulation in aquatic organisms
Adverse Effects: Large spills can increase local nitrogen load, stimulating algae bloom; toxic breakdown products under fire conditions may harm aquatic life
Other Notes: EU classification: Not environmentally hazardous under standard criteria
Waste Management: Collect all wastes containing melamine and contaminated materials in sealed, labeled containers for offsite approved waste disposal
Disposal Method: Landfilling or high-temperature incineration—must comply with national and local regulations; avoid release to surface water, stormwater drains, or sewers
Packaging Disposal: Decontaminate containers before recycling or dispose as hazardous waste; do not reuse containers for food or personal use
Special Precautions: Use suitable PPE when handling waste; minimize dust creation during disposal steps
Regulatory References: Follow local, state, federal, or EU requirements for hazardous waste labeling and recordkeeping
Non-Hazardous Waste: Treated product and rinsates generally considered non-hazardous if melamine content below regulated thresholds
UN Number: Not classified as dangerous goods for transport by land (ADR/RID), sea (IMDG), or air (IATA/ICAO)
Proper Shipping Name: Melamine (Micronized)
Hazard Class: No assigned hazard class for transport
Packing Group: None specified for bulk or packaged form
Marine Pollutant: No
Special Precautions: Prevent container breakage and dust loss during loading, transit, and unloading; store separated from foodstuffs and oxidizers in transport; mark packages according to workplace hazard standards
Additional Information: Packaging must prevent moisture ingress and withstand stacking or mechanical loading; transport documentation must comply with regional labeling and placarding requirements
US Regulations: Melamine listed on TSCA Inventory; not regulated as hazardous under OSHA or CERCLA; SARA 311/312 hazard categories: immediate (acute) health hazard
EU Regulations: Registered under REACH; no harmonized classification; subject to workplace exposure guidelines and safety data obligations
Other Regions: Complies with Australian AICS, Canadian DSL/NDSL, Japanese ENCS, Korean ECL requirements for chemical registration
Labeling: Substance labeling in compliance with GHS/CLP standard: eye irritant, dust hazard; safety measures and hazard pictograms required on bulk packs
Workplace Controls: Subject to national occupational exposure limits for nuisance particulates and dust; all users must be informed about risks and safe handling
Additional Info: US EPA status: not identified as persistent, bioaccumulative, or toxic (PBT); consumer product use still regulated for exposure limits in adhesives, coatings, and plastics
