Ammeline
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Names | |||
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Preferred IUPAC name
4,6-Diamino-1,3,5-triazin-2-ol | |||
Other names
2,4-Diamino-6-hydroxy-1,3,5-triazine
4,6-Diamino-2-hydroxy-1,3,5-triazine 4,6-diamino-1,3,5-triazin-2(1H)-one | |||
Identifiers | |||
3D model (
JSmol ) |
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ChEBI | |||
ChemSpider | |||
ECHA InfoCard
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100.010.415 | ||
KEGG | |||
PubChem CID
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UNII | |||
CompTox Dashboard (EPA)
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Properties | |||
C3H5N5O | |||
Molar mass | 127.107 g·mol−1 | ||
Appearance | White powder | ||
Melting point | N/A (decomposes before melting) | ||
Trace | |||
Solubility | Soluble in aqueous alkalies and mineral acids, but not acetic acid | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Ammeline (4,6-diamino-2-hydroxy-1,3,5-triazine) is a triazine derivative. It is the hydrolysis product of melamine.[1]
Synthesis
Ammeline can be synthesized by the
dicyandiamide and 1 mole of biuret
.
- 2 C2H4N4 + C2H5N3O2 → 2C3H5N5O + NH3
Chemical properties
Ammeline is weakly acidic with
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
- .