CAS 108-78-1 Melamine is a white crystalline powder and an organic compound with the chemical formula C3H6N6, featuring a unique 1,3,5-triazine skeleton. This structure gives melamine an impressive nitrogen content of 66% by mass, making it particularly valuable in industrial chemistry.
Physical Properties of Melamine
Melamine powder appears as a white monoclinic crystal.
It has a relatively high density of 1.573 g/cubic centimetre, about half greater than water's.
When heated, it sublimates. It is almost odourless.
Chemical Properties of Melamine
It is weakly alkaline and can form melamine salts when encountering acidic substances.
Under normal pressure, it decomposes at 354°C and sublimates at 300°C after rapid heating.
Industrial Applications of Melamine powder
Industrial uses
Melamine-Formaldehyde Resins: The primary use. Processed into laminates, tableware, decorative panels, and adhesives. MF resins offer scratch resistance, heat resistance, and good adhesion to wood, paper, and textiles.
Flame Retardant: Added to plastics, coatings, textiles, and building materials. Its high nitrogen content releases inert gas to dilute oxygen and inhibit flame spread.
Paper Industry: Melamine powder is used as a wet-strength agent to enhance paper toughness and water resistance (e.g., for banknotes, packaging paper).
Fertilizer Additive: A nitrogen source for slow-release fertilizers (limited use due to solubility constraints).
Other Uses
Water Treatment: CAS 108-78-1 Melamine acts as a chelating agent to remove heavy metal ions from wastewater.
Pharmaceutical Intermediates: Used in the synthesis of certain drugs and agrochemicals.
CAS 108-78-1 Handling Precautions:
Operate in a closed system with adequate ventilation. Operators must be specially trained and strictly adhere to operating procedures. Wear a self-priming filter respirator (half-face mask), chemical safety goggles, anti-static work clothes, and oil-resistant rubber gloves. Keep away from sources of ignition and heat. Smoking is strictly prohibited in the workplace. Use explosion-proof ventilation systems and equipment to prevent vapor leakage into the workplace air.
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