Melamine
Title: Melamine
CAS Registry Number: 108-78-1
CAS Name: 1,3,5-Triazine-2,4,6-triamine
Additional Names: 2,4,6-triamino-s-triazine; cyanurotriamide
Molecular Formula: C3H6N6
Molecular Weight: 126.12
Percent Composition: C 28.57%, H 4.80%, N 66.64%
Literature References: Usually prepd by heating dicyandiamide, H2NC(=NH)NHCºN, under pressure: Mackay, US 2737513 (1956 to Am. Cyanamid). Alternate methods starting with urea: Mackey, US 2760961 (1956 to Am. Cyanamid); Pomot et al., US 3111519 (1963 to Office Natl. Ind. de l'Azote). X-ray and neutron crystal structure: J. N. Varghese et al., Acta Crystallogr. 33B, 2102 (1977). Review of mfg processes: Faith, Keyes & Clark's Industrial Chemicals, F. A. Lowenheim, M. K. Moran, Eds. (Wiley-Interscience, New York, 4th ed., 1975) pp 519-523.
Properties: Monoclinic prisms. mp <250°. Sublimes. d250 1.573. Slightly sol in water; very slightly sol in hot alc; insol in ether.
Melting point: mp <250°
Density: d250 1.573
Use: Forms synthetic resins with formaldehyde.

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