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Melam (chemistry): Difference between revisions

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==Synthesis==
==Synthesis==
Melam was discovered by [[Liebig]] in 1834 from the residue of heating ammonium thiocyanate.
Melam was discovered by [[Liebig]] in 1834 from the residue of heating [[ammonium thiocyanate]].


==Chemical property==
==Chemical property==

Revision as of 03:33, 27 August 2011

Melam
Names
IUPAC name
N2-(4,6-Diamino-1,3,5-triazin-2-yl)-1,3,5-triazine-2,4,6-triamine
Other names
A1,3,5-Triazine-2,4,6-triamine
Identifiers
ECHA InfoCard 100.020.632 Edit this at Wikidata
Properties
C6H9N11
Molar mass 235.21 g/mol
Appearance white powder
insoluble
Solubility slightly soluble in acids
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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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.

Synthesis

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

Chemical property

In the presence of 30% ammonia, melam undergoes hydrolysis to form ammeline and melamine. It also reacts with concentrated nitric acid, producing cyanuric acid.

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

References

  • B. Bann and S.A. Miller, "Melamines and derivatives of melamine", Chemical Reviews, vol.58, p131-172 (1958).