Melamine
CAS 108-78-1
EC 203-615-4
Formula C3H6N6
MW 126.12 g/mol
Flame Retardants Plastics & PolymersCoatings, Adhesives, Sealants & ElastomersTextile, Leather & PaperBuilding & Construction Flame RetardancyPreservation & Biocide
Description
Melamine (CAS 108-78-1) is a nitrogen-rich triazine compound, also known by trade names Cymel and Cyanuramide, and by the synonym Cyanurtriamide. It carries no E-code designation and is classified under HS code 29336980. Its high nitrogen content of approximately 67% is the basis for its primary industrial functions.
In flame retardant applications, melamine acts by releasing nitrogen gases during thermal decomposition, diluting combustible vapors and interrupting the combustion cycle. In thermoset resin systems and laminates, it reacts with formaldehyde to form melamine-formaldehyde resins that provide char-forming fire resistance. It also serves as an antimicrobial agent in textile and leather processing.
Melamine is supplied as a fine crystalline powder in technical and industrial grades, compliant with REACH registration requirements for the European market. Standard packaging includes 25 kg bags and bulk quantities. Buyers should confirm grade specifications against application requirements, particularly for coatings and construction end uses.
In flame retardant applications, melamine acts by releasing nitrogen gases during thermal decomposition, diluting combustible vapors and interrupting the combustion cycle. In thermoset resin systems and laminates, it reacts with formaldehyde to form melamine-formaldehyde resins that provide char-forming fire resistance. It also serves as an antimicrobial agent in textile and leather processing.
Melamine is supplied as a fine crystalline powder in technical and industrial grades, compliant with REACH registration requirements for the European market. Standard packaging includes 25 kg bags and bulk quantities. Buyers should confirm grade specifications against application requirements, particularly for coatings and construction end uses.
Physical Properties
| Melting Point | <250 °C |
| Boiling Point | 224.22°C (rough estimate) |
| Density | 1.573 g/cm³ @ Temp: 14 °C |
| Flash Point | >110°C |
| Appearance | Melamine is a white crystalline solid |
| Color | White |
| Form | Fine Crystalline Powder |
| Water Solubility | 3 g/L (20 ºC) |
| Vapor Pressure | 66.65 hPa (315 °C) |
| Refractive Index | 1.872 |
| pH | 7-8 (32g/l, H2O, 20℃) |
| Log P | -1.22 at 20℃ |
Safety & Handling (Learn More)
Warning GHS08 GHS07
H
H227H315H317H336H351H361H373
P
P203P210P260P261P264P271P272P280P318P319P321P403P405P501P302+P352P304+P340P332+P317P333+P317P362+P364P370+P378P403+P233
Trade & Regulatory
| HS Code | 29336980 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 1 |
Other Names
1,3,5-triazine-2,4,6-triaminecyanuramidecyanurotriamidecyanurotriamineAeroCymelMELANINIsomelamine
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Raw Materials
Derivatives
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