Formula C3H5N5O Appearance White powder | Molar mass 127.11 g/mol | |
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Mood elevator ammeline open mic 31 07 13 wip
Ammeline (4,6-diamino-2-hydroxy-1,3,5-triazine) is a triazine derivative. It is the hydrolysis product of melamine.
Contents
Synthesis
Ammeline can be synthesized by the pyrolysis of urea or the condensation reaction among 2 moles of dicyandiamide and 1 mole of biuret.
2 C2H4N4 + C2H5N3O2 → 2C3H5N5O + NH3Chemical properties
Ammeline is weakly acidic with pKa ~9. It can form nitrate, sulfate, chromate, and oxalate salts. Ammeline reacts with boiling dilute hydrochloric acid to form melem and ammonia.
Ammeline is the first step in melamine hydrolysis. Further hydrolysis (e.g. boiling ammeline with dilute alkali) yields ammelide.
References
Ammeline Wikipedia(Text) CC BY-SA