Material Safety Data Sheet: Melamine Cyanurate MCA151

Identification

Product Name: Melamine Cyanurate MCA151
Chemical Name: 1,3,5-Triazine-2,4,6-triamine compound with cyanuric acid
CAS Number: 37640-57-6
Recommended Use: Flame retardant for plastics, rubbers, textiles
Supplier: Please refer to the shipment documentation or product label for supplier details
Emergency Contact: Refer to local emergency numbers listed on transport documentation or product label

Hazard Identification

Classification: Not classified as hazardous under GHS or OSHA regulations
Routes of Exposure: Inhalation, eye, or skin contact, ingestion
Symptoms: Dust may cause mild eye or respiratory irritation; prolonged skin contact can lead to dryness
Pictograms: Not applicable
Signal Word: None
Precautionary Statements: Avoid breathing dust, wash hands after handling, use with adequate ventilation

Composition / Information on Ingredients

Chemical Identity: Melamine Cyanurate
CAS Number: 37640-57-6
Concentration: >99%
Impurities: Minimal, mostly process-related, non-hazardous
Other Components: No significant secondary additives or stabilizers

First Aid Measures

Inhalation: Remove to fresh air, keep at rest, seek medical attention if cough or discomfort develop
Eye Contact: Rinse with plenty of water for several minutes, remove contact lenses if present and easy to do, consult a doctor with persistent irritation
Skin Contact: Wash with plenty of water and mild soap, seek medical attention for persistent redness or irritation
Ingestion: Rinse mouth, drink water, do not induce vomiting, consult medical advice if symptoms occur
Notes for Medical Personnel: Treat symptomatically based on patient’s condition; no antidote known

Fire-Fighting Measures

Suitable Extinguishing Media: Foam, dry powder, carbon dioxide, water spray
Unsuitable Media: High-pressure water jet can disperse dust into the air, increasing fire risk
Hazards from Combustion: Nitrogen oxides, cyanuric acid, melamine derivatives, possibly toxic gases
Protective Gear: Use self-contained breathing apparatus, full protective clothing
Advice for Firefighters: Move containers from fire area if safe, prevent runoff into drains

Accidental Release Measures

Personal Precautions: Use dust mask, safety glasses, gloves; avoid generating dust
Environmental Precautions: Prevent product from entering drains, sewers, waterways
Clean-up Methods: Sweep up spilling using tools that minimize dust, transfer into suitable containers for disposal, wash spill area with water to remove residues

Handling and Storage

Precautions for Handling: Avoid contact with eyes, skin, and clothing; ensure good ventilation at work site to control dust
Safe Storage Conditions: Store in a tightly closed container, in a cool, dry, ventilated area, away from incompatible materials such as strong oxidizers
Other Advice: Handle in accordance with good industrial hygiene and safety practice, keep out of reach of children, separate from food and beverages

Exposure Controls and Personal Protection

Engineering Controls: Local exhaust ventilation, general room ventilation
Personal Protective Equipment: Safety goggles or face shield, dust mask or respirator (value of at least N95 if available), gloves (nitrile, latex, or PVC), protective clothing if dust exposure is expected, wash hands after use
Exposure Limits: No specific exposure limits set for Melamine Cyanurate; consider limits for nuisance dust: OSHA PEL (Total Dust) 15 mg/m³, ACGIH TLV 10 mg/m³
Hygiene Measures: Do not eat, drink, or smoke in areas where material is handled

Physical and Chemical Properties

Appearance: White or off-white odorless powder
Odor: Odorless
pH (suspension in water): 5.0–7.0
Melting Point: Decomposes above 300°C
Boiling Point: Not applicable
Flash Point: Not flammable
Density: Approximately 1.6 g/cm³
Solubility: Insoluble in water, soluble in strong acids or bases
Vapor Pressure: Negligible
Auto-ignition Temperature: Not available
Particle size: Typical range 1–20 microns (may vary by grade)

Stability and Reactivity

Chemical Stability: Stable under recommended storage and handling conditions
Possibility of Hazardous Reactions: Not expected under normal conditions
Materials to Avoid: Strong oxidizing agents, strong acids
Hazardous Decomposition: Combustion may release nitrogen oxides, ammonia, cyanuric acid, and melamine derivatives
Conditions to Avoid: Excessive heat, high humidity, unprotected storage outdoors

Toxicological Information

Likely Routes of Exposure: Inhalation, skin and eye contact, ingestion
Acute Effects: Dust may cause transient irritation to eyes, respiratory tract, and skin; systemic toxicity not expected with low-level exposure
Chronic Effects: No data indicating chronic toxicity in humans; laboratory testing in animals at high doses shows low potential for organ effects
Carcinogenicity: Not listed as a carcinogen by IARC, NTP, OSHA
Other Risks: No evidence of mutagenicity or reproductive toxicity; limited data available, treat as a low-toxicity dust

Ecological Information

Ecotoxicity: Low acute aquatic toxicity expected based on structure and insolubility; not expected to cause environmental harm at low concentrations
Mobility: Insoluble, particles settle quickly in water
Persistence/Degradability: Not readily biodegradable, persists in the environment primarily as particulates
Bioaccumulation: Not expected due to size and insolubility
Aquatic Data: LC50 (Fish, 96h): >1000 mg/L; EC50 (Daphnia, 48h): >1000 mg/L
Other Notes: Avoid release in large quantities to the environment

Disposal Considerations

Waste Treatment Methods: Dispose as non-hazardous industrial waste; follow local, regional, and national regulations
Recommended Disposal: Large quantities to approved landfill or for incineration in accordance with environmental protection requirements
Container Disposal: Rinse containers and dispose with recycling or solid waste stream; do not reuse containers for food or water
Special Precautions: Minimize dust generation during disposal, collect and contain sweepings for safe handling

Transport Information

UN Number: Not regulated
Proper Shipping Name: Melamine Cyanurate
Hazard Class: Not classified as hazardous for transport
Packing Group: Not applicable
Transport Labels: No transport warning label required
Other Transport Requirements: Use sealed packaging, keep dry, prevent spillage during loading and unloading, provide basic PPE to workers involved in transport

Regulatory Information

TSCA: Listed on US Toxic Substances Control Act inventory
REACH: Registered or pre-registered in the EU; substance of low concern
SARA Title III: Not a hazardous substance under SARA Sections 302, 304, 311/312, 313
Other Regulations: Not listed as a hazardous air pollutant, not subject to labeling under major regulatory frameworks such as GHS, OSHA, WHMIS
Local Policies: Check regional requirements and guidance on use and disposal