Melamine CAS：108-78-1
Industrial Uses：This chemical is widely applied in polymer production, board lamination, adhesive manufacturing, and acts as a key raw material for synthetic resins and melamine‑formaldehyde thermoset materials.
Stability Performance：It features high chemical stability, is non‑flammable, and shows good resistance to strong acids and oxidizing agents.
Thermal Features：With a melting point above 300°C, it retains stable structural performance under high‑temperature processing conditions.
Water Solubility：It dissolves moderately in water, and this limited solubility helps improve its stability and performance in special chemical applications.
Melamine (CAS No. 108-78-1), also known as 2,4,6-triamino-1,3,5-triazine, is a nitrogen-containing heterocyclic compound widely used in industrial production. It appears as white monoclinic crystals with almost no odor. Its solubility in water is relatively low, at 3.1 g/L under room temperature, but it can dissolve in formaldehyde, acetic acid, hot ethylene glycol, glycerol, and pyridine.
Appllication of Melamine
It is used to make high-pressure laminating resins (e.g., decorative countertops), molded compounds (e.g., dinnerware), and surface coating resins (e.g., appliance finishes and automotive topcoats). Additional major products are textile and paper treatment resins. Miscellaneous uses include adhesive resins for gluing lumber, plywood, and flooring, and resins for leather tanning agents. Melamine, melamine cyanurate, other melamine salts, and guanidine compounds are currently the most used group of nitrogencontaining flame retardants. Melamine is used as a flame retardant additive for polypropylene and polyethylene. Melamine cyanurate is employed commercially as a flame retardant for polyamides and terephthalates.
Parameters
| Melting point | >300 °C (lit.) |
| Boiling point | 224.22°C (rough estimate) |
| density | 1.573 |
| bulk density | 800kg/m3 |
| vapor pressure | 66.65 hPa (315 °C) |
| refractive index | 1.872 |
| Fp | >110°C |
| storage temp. | no restrictions. |
| solubility | water: soluble25mg/mL, clear to slightly hazy, colorless |
| pka | 5(at 25℃) |
| form | Fine Crystalline Powder |
| color | White |
| PH | 7-8 (32g/l, H2O, 20℃) |
| Water Solubility | 3 g/L (20 ºC) |
| Merck | 145,811 |
| BRN | 124341 |
| Stability: | Stable. Incompatible with strong acids, strong oxidizing agents. Nonflammable. |
| InChIKey | JDSHMPZPIAZGSV-UHFFFAOYSA-N |
| LogP | -1.22 at 20℃ |
| CAS DataBase Reference | 108-78-1(CAS DataBase Reference) |
| NIST Chemistry Reference | 1,3,5-Triazine-2,4,6-triamine(108-78-1) |
| IARC | 2B (Vol. Sup 7, 73, 119) 2019 |
| EPA Substance Registry System | Melamine (108-78-1) |
Safety Information
| Hazard Codes | Xi,Xn |
| Risk Statements | 43-44-20/21 |
| Safety Statements | 36/37 |
| RIDADR | 3263 |
| WGK Germany | 1 |
| RTECS | OS0700000 |
| Autoignition Temperature | >600 °C |
| TSCA | Yes |
| PackingGroup | III |
| HS Code | 29336980 |
| Hazardous Substances Data | 108-78-1(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 3161 mg/kg LD50 dermal Rabbit > 1000 mg/kg |
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