Melamine Cyanurate (MCA)
| STRUCTURE | NUMBER |
| C6H9N9O3 | 37640-57-6 |
TDS OF MCA
| Melamine Cyanurate % | ≧ 99.7 |
| Water Content | ≦0.1 |
| Excess Cyanuric Acid | ≦0.2 |
| Whiteness（F457） | ≧96 |
| pH value（10g/l） | 5.0-7.0 |
| Specific Gravity（20℃） g/cm | 1.55-1.65 |
| Decomposition Temperature ℃ | ≧345 |
| MCA average particle | ≦5.0um |
General & Use
MCA is used as an effective flame retardant, primarily for electrical & electronic applications (connectors, switches, housings, etc) made from polyamide or TPU. In unfilled or mineral filled compounds it gives a UL94 V-2 rating.
Packaging
Available in 25KG / bag or can be customized according to customer requirements, transported as general chemicals.
Frequently Asked Questions
What is Melamine Cyanurate?
Melamine Cyanurate (MCA) is a halogen-free, nitrogen-based flame retardant.
What is the CAS number and formula of Melamine Cyanurate?
Melamine Cyanurate (MCA) has the CAS number 37640-57-6 and the chemical formula C6H9N9O3.
What is Melamine Cyanurate used for?
Melamine Cyanurate is used for flame-retardant unreinforced nylon parts (electrical components, cable ties), TPU and intumescent fire-protective coatings.
How does Melamine Cyanurate work?
MCA works largely in the condensed phase: it promotes char formation and releases inert nitrogen gases that dilute combustible gases, and it encourages melt-dripping that carries heat away in nylon.
Which materials is Melamine Cyanurate compatible with?
Unreinforced nylon (PA6 and PA66), thermoplastic polyurethane (TPU) and intumescent coatings.
Is Melamine Cyanurate brominated or halogen-free / is it regulatory compliant?
MCA is halogen-free, making it suitable for low-smoke, halogen-free flame-retardant requirements. REACH documentation available on request.
What is the typical dosage or concentration of Melamine Cyanurate?
Typically 5-15% in unreinforced nylon to reach a UL94 V-0 rating.
How should Melamine Cyanurate be stored and handled?
Store in a cool, dry, well-ventilated place away from heat, ignition sources and direct sunlight, in sealed original packaging and away from strong oxidisers. Refer to the SDS for full handling guidance.
What packaging and minimum order quantity does Haiwang offer for Melamine Cyanurate?
Melamine Cyanurate is supplied in bulk, typically as 25 kg bags or 500/1000 kg jumbo bags on pallets. Shandong Haiwang Chemical accommodates flexible MOQs for trial and full container-load orders – contact us for current options.
Is Haiwang a manufacturer, and can it export Melamine Cyanurate?
Yes. Shandong Haiwang Chemical is a manufacturer (not a trader) and exports Melamine Cyanurate worldwide. Technical data sheets, COA and samples are available on request; contact the sales team for a quotation and lead time.
What does Melamine Cyanurate look like?
Melamine Cyanurate is supplied as a white crystalline powder.
What is the purity or specification of Melamine Cyanurate?
Typical specification: ≥99% purity. A Certificate of Analysis is provided with each shipment.
Is Melamine Cyanurate soluble in water?
Melamine Cyanurate is very low solubility in water.
How thermally stable is Melamine Cyanurate?
Melamine Cyanurate offers thermal stability with decomposition above ~350°C.
What is the shelf life of Melamine Cyanurate?
Stored sealed in a cool, dry place, Melamine Cyanurate has a shelf life of around 2–3 years.
What safety precautions are needed when handling Melamine Cyanurate?
Melamine Cyanurate has low acute toxicity, but avoid dust inhalation and skin or eye contact — use standard PPE and follow the SDS.
Which synergist or co-additives are recommended with Melamine Cyanurate?
Melamine Cyanurate is typically used with generally used alone — no antimony synergist is required.
What are the advantages of Melamine Cyanurate over alternatives?
Melamine Cyanurate is halogen-free and low-smoke, ideal where halogen-free flame retardancy is needed in nylon.
What certifications and documents can Haiwang provide for Melamine Cyanurate?
Shandong Haiwang Chemical can provide REACH and RoHS documentation, third-party SGS test reports, a Certificate of Analysis (COA) and Safety Data Sheet (SDS), and manufactures under an ISO 9001 quality system.
What are the lead time, shipping and payment terms for Melamine Cyanurate?
Samples of Melamine Cyanurate are usually available within a few days, and bulk lead time is typically 1–2 weeks depending on volume. Haiwang exports worldwide (FOB China ports, or CIF and other Incoterms on request) with flexible terms such as T/T or L/C — contact the sales team for a quotation, HS code and current lead time.
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