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'''Triuret''' is an ]. It can be produced during the pyrolysis '''Triuret''' is an ] with the formula <sub>2</sub>NH It is a product from the pyrolysis of ]. Triuret is a colorless, crystalline, hygroscopic solid, slightly soluble in cold water or ether, and more soluble in hot water.
of ] by condensation of three urea molecules with elimination of two molecules of ].


== Properties == ==Synthesis==
It is prepared by heating thin layers of urea, the thin layers facilitating escape of ]:
Triuret is a colorless, crystalline, hygroscopic substance, slightly soluble in cold water or ether, and more soluble in hot water.
:3 <sub>2</sub>NH + 2 NH<sub>3</sub>
It can also prepared by treatment of urea with ]:<ref name=Ullmann>{{ Ullmann | authors = C. Nitschke, G. Scherr | title = Urea Derivatives | year = 2012| doi = 10.1002/14356007.o27_o04}}</ref>
:2 <sub>2</sub>NH + 2 HCl

Triuret is a complicating by-product in the industrial synthesis of ] from urea.


== Related compounds == == Related compounds ==
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* ] * ]


==References==
<references />


] ]

Revision as of 14:35, 19 July 2014

Triuret
Structure of triuret
Ball-and-stick model of triuret
Names
Other names Carbonyldiurea
1,3-Dicarbamylurea
Dicarbamylurea
Diimidotricarbonic diamide
2,4-diimidotricarbonic diamide
Tricarbonodiimidic diamide
Identifiers
CAS Number
ECHA InfoCard 100.008.317 Edit this at Wikidata
PubChem CID
CompTox Dashboard (EPA)
Properties
Chemical formula C3H6N4O3
Molar mass 146.106 g·mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references
Chemical compound

Triuret is an organic compound with the formula 2NH It is a product from the pyrolysis of urea. Triuret is a colorless, crystalline, hygroscopic solid, slightly soluble in cold water or ether, and more soluble in hot water.

Synthesis

It is prepared by heating thin layers of urea, the thin layers facilitating escape of ammonia:

3 2NH + 2 NH3

It can also prepared by treatment of urea with phosgene:

2 2NH + 2 HCl

Triuret is a complicating by-product in the industrial synthesis of melamine from urea.

Related compounds

References

  1. "Urea Derivatives". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. 2012. doi:10.1002/14356007.o27_o04. ISBN 978-3527306732. {{cite encyclopedia}}: Unknown parameter |authors= ignored (help)
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