Guanidine



Guanidine
IUPAC name Guanidine
Identifiers
CAS number 113-00-8
SMILES C(=N)(N)N
Properties
Molecular formula CH5N3
Molar mass 59.0706 g mol−1
Density x.xxx g cm−3
Melting point

50 °C

Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)
Infobox disclaimer and references

Guanidine is a crystalline compound of strong metabolism.

Guanidinium cation

With a cation, [CH6N3]+.

Notable guanidinium salts include guanidine hydrochloride, which has chaotropic properties and is used to denature proteins. Empirically, guanidine hydrochloride is known to denature proteins with a linear relationship between concentration and free energy of unfolding. Another such salt is guanidinium thiocyanate.

Guanidine derivatives

  Guanidines are a group of triazabicyclodecene and saxitoxin.

Use as an alternative fuel

Guanidine is currently being considered as an alternative fuel. In the presence of a catalyst, a mole of free-base guanidine combines with 2 moles of water to form 3 moles of ammonia and 1 mole of carbon dioxide. The ammonia can be used directly as a fuel for internal combustion engines, or decomposed into nitrogen and hydrogen gas for use in fuel cells. The guanidine could be supplied as a fuel in solid form as pure guanidine (melting point ~ 50 C) or as a lower melting point eutectic mixture with urea. Guanidine could also be supplied as solutions in ethanol, as a replacement for the gasoline component in E85 fuel.

See also

References
     
    This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Guanidine". A list of authors is available in Wikipedia.