Cyanogen iodide

Cyanogen iodide
IUPAC name iodoformonitrile
Other names iodine cyanide, cyanogen iodide
Identifiers
CAS number	506-78-5
PubChem	10478
ChemSpider	10046 Y
EC number	208-053-3
RTECS number	NN1750000
Jmol-3D images	Image 1
SMILES IC#N
InChI InChI=1S/CIN/c2-1-3 Y Key: WPBXOELOQKLBDF-UHFFFAOYSA-N Y InChI=1/CIN/c2-1-3 Key: WPBXOELOQKLBDF-UHFFFAOYAT
Properties
Molecular formula	ICN
Molar mass	152.92 g/mol
Appearance	white crystals
Odor	very pungent
Density	1.84 g/cm3
Melting point	146.7 °C
Solubility in water	soluble, slowly reacts
Solubility	soluble in ethanol, ether, volatile oils
Hazards
NFPA 704	0 3 0
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Iodine cyanide is the inorganic compound with the formula ICN. It is a pseudohalogen composed of iodine and the cyanide group. It is toxic and occurs as white crystals that react slowly with water to form hydrogen cyanide. It is prepared by combining I₂ and sodium cyanide in ice-cold water. The product is extracted with ether.

I₂ + NaCN → NaI + ICN

External links

• Iodine cyanide data

References

• Langlois M. (1860). "CYANOGÈNE Action de l'iode sur une solution concentrée de cyanure de potassium". Comptes Rendus 51: 29. http://gallica.bnf.fr/ark:/12148/bpt6k30082/f29.table. 
• Langlois M. (1860). "Ueber die Einwirkung des Jods auf concentrirte Cyankaliumlösung". Annalen der Chemie und Pharmacie 116 (3): 288. doi:10.1002/jlac.18601160303.