Melamine

1.Physical and chemical properties Formula:C3N6H6 Molecular weight:126.13 Appearance: white single crystal or white powder Density:1.573×10³kg/m³(25?) Melting point:354? 2.Uses Melamine is an organic chemical intermediate, which is widely used in paints, pharmaceuticals, building materials, paper making, leather, textile and other industries. The condensation of melamine and formaldehyde produces melamine-formaldehyde resin (a kind of amino resin). Melamine resin is featured by heat resistance, water resistance, aging resistance, chemical resistance, electric arc resistance, high gloss, high density, high hardness, and other excellent features, which is an important chemical raw material for plastics, paints, wood, paper making, and textile industry. The kneading of melamine resin with fillers, pigments and lubricants produces thermosetting (amino) plastic, whose main advantages include light fastness, odorlessness, and chromatophile. It does not separate toxic substances under the action of water and cannot be carbonized at high temperature. It also has good electrical insulation properties and mechanical strength, which can be made into all kinds of electrical or mechanical equipment accessories and household heat-resistant containers and cutlery. Modified melamine formaldehyde resin can be made into such paints as baking finish which has bright color, durability, and good hardness. Melamine formaldehyde resin made also be used in the paper making industry to produce shrink- proof and moisture-proof papers, and print paper money and military maps; it can be used in the timber industry as binders or decorative plates; it can be used in the textile industry as textile finishing agents to ensure the anti-creasing, anti-shrinking, anti- bleaching, washing-resistant features of textiles and keep the shape of garments; it can be used in the building materials industry as high-performance concrete water reducers; it can be used in the leather industry as tanning agents; it can be used in the coating industry as crosslinking agents.