Melamine
Melamine is an organic compound with the formula C3H6N6. This white solid is a trimer of cyanamide, with a 1,3,5-triazine skeleton. Like cyanamide, it contains 67% nitrogen by mass, and its derivatives have fire-retardant properties due to its release of nitrogen gas when burned or charred. Melamine can be combined with formaldehyde and other agents to produce melamine resins. Such resins are characteristically durable thermosetting plastic used in high pressure decorative laminates such as Formica, melamine dinnerware including cooking utensils, plates, plastic products,[4] laminate flooring, and dry erase boards. Melamine foam is used as insulation, soundproofing material and in polymeric cleaning products, such as Magic Eraser.
Application
Toluene is used as a solvent and to make aviation gasoline, spray and wall paints, paint thinner, medicine, dyes, explosives, detergents, fingernail polish, spot removers, lacquers, adhesives, rubber, and antifreeze. It is also used in some printing and leather tanning processes.
| Chemical formula | C3H6N6 |
|---|---|
| Molar mass | 126.123 g·mol−1 |
| Appearance | White solid |
| Density | 1.573 g/cm3[1] |
| Melting point | 343 °C (649 °F; 616 K) (decomposition)[1] |
| Boiling point | Sublimes |
| Solubility in water | 3240 mg/ L (20 °C)[2] |
| Solubility | very slightly soluble in hot alcohol[clarification needed], benzene, glycerol, pyridine insoluble in ether, benzene, CCl4 |
| log P | −1.37 |
| Acidity (pKa) | 5.0 (conjugated acid)[3] |
| Basicity (pKb) | 9.0 [3] |
| Magnetic susceptibility (χ) | −61.8·10−6 cm3/mol |
| Refractive index (nD) | 1.872[1] |
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