Melamine
Other Name :Aero,Cyanuramine
CAS No.;108-78-1
EINECS No.:203-615-4
Physical Properties:
Characters for the pure white melamine edge monoclinic crystal, non-flammable, odorless, low toxicity, density 1.573g/cm3 (16 ℃). Pressure melting point 354 ℃, rapidly heating the decomposition; rapid increase sublimation, sublimation temperature of 300 ℃. Solubility in water increases with increasing temperature, at 20 ℃, about 3.3 g / L, that is soluble in cold water, soluble in hot water, very slightly soluble in hot ethanol, insoluble in ether, benzene and four chlorinated carbon, can be dissolved in methanol, formaldehyde, acetic acid, hot ethylene glycol, glycerol, pyridine and so on..
Other Name :Aero,Cyanuramine
CAS No.;108-78-1
EINECS No.:203-615-4
Physical Properties:
Characters for the pure white melamine edge monoclinic crystal, non-flammable, odorless, low toxicity, density 1.573g/cm3 (16 ℃). Pressure melting point 354 ℃, rapidly heating the decomposition; rapid increase sublimation, sublimation temperature of 300 ℃. Solubility in water increases with increasing temperature, at 20 ℃, about 3.3 g / L, that is soluble in cold water, soluble in hot water, very slightly soluble in hot ethanol, insoluble in ether, benzene and four chlorinated carbon, can be dissolved in methanol, formaldehyde, acetic acid, hot ethylene glycol, glycerol, pyridine and so on..
Chemical Properties:
Weakly alkaline (pH = 8), and hydrochloric acid, sulfuric acid, nitric acid, acetic acid, oxalic acid can form a melamine salt. In the case of neutral or slightly alkaline, with a variety of formaldehyde condensation of methylol melamine, but in the slightly acidic (pH value of 5.5 to 6.5) and hydroxymethyl derivatives were generated polycondensation resin products. Case of strong acid or alkali solution hydrolysis, amino hydroxy gradually replaced Mr. diamide into cyanuric acid, cyanuric acid hydrolysis further one amide, the last generation of cyanuric acid.
Mainly usage:
Melamine is a versatile basic organic chemical intermediate products, the main use is as the production of melamine-formaldehyde resin (MF) of raw materials. Melamine can also be made flame retardant, water-reducing agent, formaldehyde, cleaning agents. The resin of high hardness than urea-formaldehyde resin, non-flammable, water, heat resistance, aging resistance, arc resistance, chemical corrosion, good insulation properties, gloss and mechanical strength, widely used in wood, plastic, paint, paper, Textiles, leather, electrical, pharmaceutical and other industries.
Weakly alkaline (pH = 8), and hydrochloric acid, sulfuric acid, nitric acid, acetic acid, oxalic acid can form a melamine salt. In the case of neutral or slightly alkaline, with a variety of formaldehyde condensation of methylol melamine, but in the slightly acidic (pH value of 5.5 to 6.5) and hydroxymethyl derivatives were generated polycondensation resin products. Case of strong acid or alkali solution hydrolysis, amino hydroxy gradually replaced Mr. diamide into cyanuric acid, cyanuric acid hydrolysis further one amide, the last generation of cyanuric acid.
Mainly usage:
Melamine is a versatile basic organic chemical intermediate products, the main use is as the production of melamine-formaldehyde resin (MF) of raw materials. Melamine can also be made flame retardant, water-reducing agent, formaldehyde, cleaning agents. The resin of high hardness than urea-formaldehyde resin, non-flammable, water, heat resistance, aging resistance, arc resistance, chemical corrosion, good insulation properties, gloss and mechanical strength, widely used in wood, plastic, paint, paper, Textiles, leather, electrical, pharmaceutical and other industries.