Potassium cyanide

Potassium cyanide
Names
	IUPAC name Potassium cyanide
Identifiers
CAS Number	151-50-8 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:33191 ;
ChemSpider	8681 ;
ECHA InfoCard	100.005.267
EC Number	205-792-3;
PubChem CID	9032;
RTECS number	TS8750000;
UNII	MQD255M2ZO ;
UN number	1680
CompTox Dashboard (EPA)	DTXSID0024268 ;
	SMILES [K+].[C-]#N;
Properties
Chemical formula	KCN
Molar mass	65.12 g/mol
Appearance	White crystalline solid ; deliquescent
Odor	faint, bitter almond-like
Density	1.52 g/cm3
Melting point	634.5 °C (1,174.1 °F; 907.6 K)
Boiling point	1,625 °C (2,957 °F; 1,898 K)
Solubility in water	71.6 g/100 ml (25 °C) ; 100 g/100 ml (100 °C)
Solubility in methanol	4.91 g/100 ml (20 °C)
Solubility in glycerol	soluble
Solubility in formamide	14.6 g/100 ml
Solubility in ethanol	0.57 g/100 ml
Solubility in hydroxylamine	41 g/100 ml
Acidity (pKa)	11.0
Magnetic susceptibility (χ)	−37.0·10−6 cm3/mol
Refractive index (nD)	1.410
Thermochemistry
Std enthalpy of; formation ΔfHo298	−131.5 kJ/mol
Standard molar; entropy So298	127.8 J K−1 mol−1
Hazards
	0 4 0
Flash point	Non-flammable
U.S. Permissible; exposure limit (PEL)	TWA 5 mg/m3
Related compounds
Other anions	{{{value}}}
Other cations	{{{value}}}
Related compounds	{{{value}}}
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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	Infobox references

Potassium cyanide is a compound with the formula KCN. It is a colorless salt that looks like sugar and is very soluble in water. Most KCN is used in gold mining, organic synthesis, and electroplating. They could also be used in jewellery for chemical gilding and buffing.^[1] Potassium cyanide is highly toxic, and a dose of 200 to 300 milligrams will kill nearly any human.^[2]

References

↑ Gail, Ernst; Gos, Stephen; Kulzer, Rupprecht; Lorösch, Jürgen; Rubo, Andreas; Sauer, Manfred; Kellens, Raf; Reddy, Jay; Steier, Norbert; Hasenpusch, Wolfgang (2011). "Cyano Compounds, Inorganic". Ullmann's Encyclopedia of Industrial Chemistry. doi:10.1002/14356007.a08_159.pub3. ISBN 978-3-527-30385-4.
↑ "Potassium Cyanide | Cameo Chemicals | NOAA".

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[Ullmann-1] Gail, Ernst; Gos, Stephen; Kulzer, Rupprecht; Lorösch, Jürgen; Rubo, Andreas; Sauer, Manfred; Kellens, Raf; Reddy, Jay; Steier, Norbert; Hasenpusch, Wolfgang (2011). "Cyano Compounds, Inorganic". Ullmann's Encyclopedia of Industrial Chemistry. doi:10.1002/14356007.a08_159.pub3. ISBN 978-3-527-30385-4.

[2] "Potassium Cyanide | Cameo Chemicals | NOAA".

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