Chemistry:Potassium fulminate

Potassium fulminate

$\mathsf{K}{\mathsf{+}}^{\mathsf{-}}\mathsf{C}\mathsf{\equiv }\stackrel{+}{N}\mathsf{-}{\mathsf{O}}^{\mathsf{-}}$
Names
IUPAC name Potassium oxidoazaniumylidynemethane
Identifiers
CAS Number	15736-99-9 N
3D model (JSmol)	Interactive image
ChemSpider	9541865 Y
PubChem CID	15975309
InChI InChI=1S/CNO.K/c1-2-3;/q-1;+1 Y Key: LOMWRVTZROPEGG-UHFFFAOYSA-N Y InChI=1/CNO.K/c1-2-3;/q-1;+1 Key: LOMWRVTZROPEGG-UHFFFAOYAS
SMILES [K+].[C-]#[N+][O-]
Properties
Chemical formula	CKNO
Molar mass	81.115 g·mol−1
Density	1.8 g/cm3
Hazards
Main hazards	Explosive
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YN ?)
Infobox references

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Potassium fulminate is the potassium salt of the fulminate ion. Its only use, aside from chemical demonstrations, is in the percussion caps for some early rifles. Usually prepared by reacting a potassium amalgam with mercury fulminate, it is much less sensitive due to the ionic bond between potassium and carbon, unlike the weaker covalent bond between mercury and carbon.

See also

• List of explosives
• Fulminic acid
• Fulminate
• Silver fulminate
• Mercury(II) fulminate
• Potassium cyanate