, Section2={{Chembox Properties , Formula = C₆H₉N₁₁ , MolarMass = 235.21 g/mol , Appearance = white powder , Density = , MeltingPt = , MeltingPt_notes = , BoilingPt = , BoilingPt_notes = , Solubility = insoluble , SolubleOther = slightly soluble in acids , Solvent = , pKa = , pKb = , Section7={{Chembox Hazards , MainHazards = , NFPA-H = , NFPA-F = , NFPA-R = , NFPA-S = , FlashPt = , AutoignitionPt = , ExploLimits = , PEL = Melam (''N2''-(4,6-diamino-1,3,5-triazin-2-yl)-1,3,5-triazine-2,4,6-triamine) is a condensation product of

melamine Melamine is an organic compound with the formula C3H6N6. This white solid is a trimer (chemistry), trimer of cyanamide, with a 1,3,5-Triazine, 1,3,5-triazine skeleton. Like cyanamide, it contains 66% nitrogen by mass, and its derivatives ha ...

Synthesis

Melam was discovered by Liebig in 1834 from the residue of heating ammonium thiocyanate.

Chemical property

In the presence of 30%

ammonia Ammonia is an inorganic chemical compound of nitrogen and hydrogen with the chemical formula, formula . A Binary compounds of hydrogen, stable binary hydride and the simplest pnictogen hydride, ammonia is a colourless gas with a distinctive pu ...

, melam undergoes hydrolysis to form ammeline and

. It also reacts with concentrated

nitric acid Nitric acid is an inorganic compound with the formula . It is a highly corrosive mineral acid. The compound is colorless, but samples tend to acquire a yellow cast over time due to decomposition into nitrogen oxide, oxides of nitrogen. Most com ...

, producing

cyanuric acid Cyanuric acid or 1,3,5-triazine-2,4,6-triol is a chemical compound with the chemical formula, formula (CNOH)3. Like many industrially useful chemicals, this triazine has many synonyms. This white, odorless solid finds use as a precursor or a com ...

. Upon heating, melam first loses ammonia to form melem, and then

melon A melon is any of various plants of the family Cucurbitaceae with sweet, edible, and fleshy fruit. It can also specifically refer to ''Cucumis melo'', commonly known as the "true melon" or simply "melon". The term "melon" can apply to both the p ...

References

* B. Bann and S.A. Miller, "Melamines and derivatives of melamine", ''

Chemical Reviews ''Chemical Reviews'' is peer-reviewed scientific journal published twice per month by the American Chemical Society. It publishes review articles on all aspects of chemistry. It was established in 1924 by William Albert Noyes (University of Illino ...

'', vol.58, p131-172 (1958). Triazines Secondary amines Polyamines