Melamine Cyanurate CAS 37640-57-6 is a nitrogen contained flame retardant, Cyanuric acid melamine (MCA) is an ionic compound formed by hydrogen bonding between melamine and cyanuric acid, with a chemical formula of C ₉ H ₁ ₂ N ₁ ₂ O3, a molecular weight of 372.35, and a white crystalline powder appearance. The nitrogen content in its molecular structure is as high as 45.7%, with both acidic (cyanuric acid) and alkaline (melamine) functional groups. It achieves flame retardancy through a triple mechanism of endothermic decomposition, release of inert gases (NH3, N ₂), and formation of an expanded carbon layer. The product purity is ≥ 99%, the thermal decomposition temperature is ≥ 300 ℃, it is halogen-free, low smoke and non-toxic, and meets environmental standards such as EU REACH and US FDA. It is the preferred solution to replace traditional halogen flame retardants.
Highly effective flame retardant: Reduce the combustion temperature and inhibit the spread of flames through endothermic decomposition.
Low addition and high effect: The addition amount is as low as 15%-30%, maintaining the mechanical properties of the material.
Environmentally friendly and safe: Halogen-free formula, in line with the environmental protection requirements of electronic and electrical appliances, automobile and other industries.
Excellent compatibility: Highly compatible with materials such as PA, PBT, TPU, and stable processing performance.
Electronic and electrical appliances: Flame retardant modification of circuit boards, connectors, sockets, etc.
Automotive industry: Fireproof treatment of cable sheaths and interior materials
Engineering plastics: Enhanced flame retardant properties of PA6, PA66, PBT, etc.
Coatings and adhesives: Improve the fire resistance level of coatings.
| Item | Unit | Granular MCA |
| Appearance | — | White Granula |
| Purity | % | ≥99.5 |
| Melamine Residue | % | ≤0.3 |
| Cyanuric Acid Residue | % | ≤0.2 |
| Moisture | % | ≤0.3 |
| Whiteness | % | — |
| PH Value（50G/L） | — | 5.0~7.5 |
| Particle Size (D50) | µm | — |
| Particle Size (D50) | µm | — |
Production advantages:
1. Innovative synthesis process
The integrated process of "solution method spray drying" is adopted to form spherical particles with uniform particle size by precisely controlling the molar ratio of melamine to cyanuric acid (1:1) and the reaction pH value (6.5-7.0), avoiding the agglomeration problem of traditional melting method. The variation coefficient of product batch stability is ≤ 3%.
2. Strict quality control
Raw material traceability: Food grade melamine and cyanuric acid are used, with heavy metal (Pb/Cd) content ≤ 5ppm, to ensure the safety of downstream products.
Full testing: Each batch of products needs to undergo 8 tests, including HPLC (purity), TGA (thermal stability), laser particle size analysis (particle size distribution), etc., and a COA report and MSDS document should be issued.
Packaging:Net weight 25kg/bag, Compound paper-plastic bag
Storage and Attention:Keep in dry, room temperature and moisture proof condition, preventing the heating
Technical support: Provide one-stop solutions such as formula optimization and compatibility testing
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