Melamine
CAS: 108-78-1;94977-27-2
Chemical formula: C3H6N6
Alias:
Cyanuramide
2,4,6-Triamino-1,3,5-triazine
1,3,5-triazine-2,4,6-triamine
1,2,3-triazine-4,5,6-triamine
1,2,3-triazine-2,4,6(1H)-triamine
Use:
Used as a tanning agent and filler for leather processing. Widely used in plastic, wood, paper, textile, paint and other industries, it is the raw material for the manufacture of advanced coatings, laminates, molding powders, adhesives, textile and paper treatment agents, and insulating materials.
Basic Information
Molecular weight: 126.136
InChI: InChI=1/C3H8N6/c4-2-1-3(5)8-9(6)7-2/h1,7H,4,6H2,(H2,5,8)
Density: 2.046g/cm
Melting point: 354℃
Boiling point: 299.696°C at 760 mmHg
Flash point: 135.052°C
Water solubility: 3 g/L (20℃)
Vapor Pressure: 0.001mmHg at 25°C
Refractive index: 1.922
Physical and chemical properties: density 1.573, melting point 354°C, water solubility 3 g/L (20°C)
Product use: It is the main raw material for the manufacture of melamine formaldehyde resin
Upstream raw materials: silica gel, liquid ammonia, urea, liquid ammonia
Downstream Products: Boron Nitride
Product Properties
White crystals. Heat sublimation. Nonflammable. Soluble in methanol, formaldehyde, acetic acid, hot ethylene glycol, glycerol, pyridine, insoluble in ether, benzene, carbon tetrachloride. It can decompose at high temperature to produce highly toxic cyanide gas.
Production Method
Melamine uses urea as raw material, ammonia gas as liquefied carrier gas, and silica gel as catalyst for gas-solid phase catalytic reaction. Semi-dry atmospheric pressure method is mostly used to synthesize melamine at 380-400 ℃, and make melamine in desublimator. After crystallization, the crude product is dissolved, filtered and crystallized to make the finished product, or it can be obtained by reacting dicyandiamide with ammonia in methanol solvent at 200℃.
The Main Purpose
Condensation polymerization with formaldehyde can produce melamine resin, which can be used in plastics and coating industries, and can also be used as anti-folding and anti-shrinking treatment agent for textiles. Its modified resin can be used as metal coating with bright color, durability and good hardness. It can also be used as a sturdy, heat-resistant decorative sheet, a tanning agent for moisture-proof paper and gray leather, an adhesive for synthetic fireproof laminates, a fixative or hardener for waterproofing agents, etc. 582 melamine resin made from melamine, formaldehyde and butanol as raw materials. It is used as a leveling agent for solvent-based polyurethane coatings with excellent results.
It is the main raw material for the manufacture of melamine formaldehyde resin, used as an organic element analysis reagent, and also used in the synthesis of organic and resin as a tanning agent and filler for leather processing. Condensation polymerization with formaldehyde can produce melamine resin, which can be used in plastics and coating industries, and can also be used as anti-folding and anti-shrinking treatment agent for textiles. Its modified resin can be used as metal coating with bright color, durability and good hardness.
Melamine resin made by condensation polymerization with formaldehyde is widely used in the manufacture and processing of wooden building formwork. It can be used for the waterproofing of the formwork surface and the adhesion of the wood core board to increase the repeated use of the formwork.