This section provides an overview for melamine as well as their applications and principles. Also, please take a look at the list of 5 melamine manufacturers and their company rankings. Here are the top-ranked melamine companies as of February, 2024: 1.PerkinElmer Inc., 2.Huaqiang Chemical Group Stock Co.,Ltd., 3.Esprix.
Melamine is an organic nitrogen compound with the chemical formula C3H6N6.
It is soluble in hot water and DMSO, but insoluble in cold water and ethanol. Melamine is also sublimable.
It can also be obtained by reacting dicyandiamide with liquid ammonia under pressure. However, currently, the following two methods are mainly used to obtain melamine from urea: the first is a low-pressure contact method using a catalyst to obtain melamine under 1-10 atmospheres; the second is a high-pressure liquid-phase method to obtain melamine under about 100 atmospheres without a catalyst; and the third is a high pressure method to obtain melamine under about 100 atmospheres and without a catalyst.
The main use for melamine is as a raw material for melamine resin. Melamine resin is a thermosetting resin produced by the condensation polymerization of melamine and formaldehyde. Melamine resin is used in a wide range of applications because of its excellent water, heat, and rub resistance, and because it is less expensive than other thermosetting resins. Examples include tableware, sponges, paints, building materials, and textile materials.
It is also used to make connectors, switches, and electrical components because of its excellent electrical insulation and flame resistance. Because of its high fire and heat resistance, it is sometimes used as a flame retardant.
Melamine is a white crystalline solid, a type of tertiary amine with the chemical formula C3H6N6. It is somewhat insoluble in water, dissolving in about 3.2 g/100 ml of water at room temperature. It is also insoluble in hot water and polar organic solvents such as ethanol and methanol, but is more soluble in ammonia and alkaline solutions.
It is thermally stable and begins to decompose when heated to high temperatures (approximately 345°C). During decomposition, ammonia, water, and carbon may be released.
Melamine reacts with aldehydes (especially formaldehyde) to form melamine-formaldehyde resin. This is one of the most common uses of Melamine and is widely used in the manufacture of plastics, adhesives, and coatings.
Melamine is generally non-toxic and has little effect on the human body. However, there is a risk of kidney damage if ingested in high concentrations or if melamine is introduced into food or beverages. These properties make Melamine widely used in plastic products, adhesives, coatings, and optical materials.
Melamine is an organic compound with the chemical formula C3H6N6, characterized by the alternating arrangement of three carbon atoms and three nitrogen atoms, with these six atoms forming a six-membered ring structure.
Melamine is a crystalline solid because of the strong sharing of electrons through covalent bonds, resulting in strong intermolecular attraction. This structure is responsible for Melamine's thermal stability and heat resistance.
These properties also promote reactivity and cross-linking reactions with aldehydes, helping to form high-molecular compounds such as melamine-formaldehyde resin. This is one of the reasons why Melamine is widely used.
Melamine is commonly produced from hydrogen cyanide. The main production method used is to react hydrogen cyanide with ammonia to produce melamine, which is then separated and purified as a solid.
First, hydrogen cyanide reacts with ammonia to produce dicyandiamide (DCDA).
HCN + NH3 → DCDA
Next, the resulting dicyandiamide is pyrolyzed at high temperature (approx. 400°C) and high pressure (approx. 50-100 atm) to produce Melamine.
6DCDA → 3C3H6N6 + 6NH3
The final product is obtained as a white crystalline powder. This powder can be used as a raw material for Melamine resins used in a variety of applications. This process is widely used as the primary production process for Melamine because of its efficiency and high volume production. However, hydrogen cyanide is toxic, and safety measures are important. Environmental impact must also be considered.
*Including some distributors, etc.
Sort by Features
Sort by Area
PerkinElmer Inc., founded in 1937, is an American manufacturer headquartered in Waltham, Massachusetts, specializing in laboratory technology and management. The company's product offerings include analysis and characterization instruments, software, and consumables. Such offerings cover chromatography, mass spectrometry, molecular and atomic spectroscopy. They also provide immunoassay and food quality analyzers, as well as the simultaneous thermal analyzer (STA). These products find applications in various industries, such as biopharmaceuticals, food safety, lithium battery, and water resource management. PerkinElmer also offers OneSource Laboratory Services, providing knowledge, application, and service solutions for scientific laboratories. Additionally, their LABStartUp program supports new laboratories with instrumentation, consumables, and funding.
Merck, started in 1668 and based in Darmstadt, Germany, is a supplier of solutions and services for research, development, and manufacture of pharmaceutical and biotechnological drug therapies. The company serves the life science industry and has a broad portfolio of 300,000 products, including biopharmaceutical manufacturing, industrial microbiology, reagent, life science research, and water purification products. It is available in 66 countries, brings together six brands, and has several ISO certifications, including ISO 13485, ISO 14001, ISO 13485, and ISO 50001.
Nacalai Tesque Inc., founded in 1846 and headquartered in Kyoto, Japan, is a manufacturer of research chemicals, fine chemicals, diagnostics, and the related instruments. Some of its products include cytokines, nucleic acid electrophoresis, cell dissociation reagents, and sialic acid-related products, and it also offers custom and bulk service for bulk reagents and cell culture media. The company has more than 50 domestic distributors and several worldwide, including Asia, the Middle East, Oceania, Europe, and Africa. It is ISO 9001 and ISO 9002 certified, while the Kyoto South brand and Tesque factory are ISO 14001 certified.
Huaqiang Chemical Group Stock Co., Ltd. was founded in 1970 and is based in Dangyang, Hubei, China, as a manufacturer and distributor of chemical products. The product portfolio of the company includes sulfuric acid, hydrochloric acid, chlorosulfonic acid, humic acid fertilizer, and bulk blending fertilizer. The products find applications in battery production, petroleum refining, mineral processing, wastewater treatment, and agriculture, improving soil structure, enhancing crop root development, and promoting photosynthesis to boost crop yields. The company serves various industries, including agriculture, dye, medicine, food, printing and dyeing, leather, and metallurgy.
*Including some distributors, etc.
*Including some distributors, etc.
|Number of Companies
|United States of America