Melamine
Industrial Applications: This compound finds versatile industrial implementation in polymer synthesis, laminate production, adhesive systems, and serves as a precursor for synthetic resins and melamine-formaldehyde based thermosetting materials.
Stability Profile: The material demonstrates notable chemical inertness, exhibiting non-flammable characteristics and showing resistance to strong acidic environments and oxidizing substances.
Thermal Properties: With a melting transition exceeding 300°C, the substance maintains structural integrity in elevated temperature processing applications.
Aqueous Solubility: While demonstrating moderate solubility in aqueous media, this limited dissolution characteristic contributes to its stability profile and functional utility in specialized chemical processes.
Melamine (CAS 108-78-1), systematically identified as 2,4,6-triamino-1,3,5-triazine, represents a nitrogen-rich heterocyclic compound primarily employed as an industrial chemical. This material presents as white monoclinic crystals with minimal detectable odor, demonstrating limited aqueous solubility (3.1 g/L at ambient temperature) while exhibiting dissolution capability in formaldehyde, acetic acid, heated ethylene glycol, glycerol, and pyridine.
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 | 14,5811 |
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 |
The compound remains insoluble in acetone and diethyl ether, and presents potential health hazards that preclude its application in food processing or as nutritional additives. Nevertheless, documented instances exist of fraudulent adulteration of dairy commodities using melamine to artificially elevate apparent protein content through nitrogen-based analytical methodologies.
