Cyanogen chloride

Cyanogen chloride
Ball and stick model of cyanogen chloride	Spacefill model of cyanogen chloride
Names
	Preferred IUPAC name Carbononitridic chloride
	Systematic IUPAC name Chloroformonitrile
	Other names Chlorine cyanide; Cyanic chloride; Chlorocyanogen; Chlorcyan; Chlorocyanide;
Identifiers
CAS Number	506-77-4 ;
3D model (JSmol)	Interactive image;
Abbreviations	CK
ChemSpider	10045 ;
ECHA InfoCard	100.007.321
EC Number	208-052-8;
MeSH	cyanogen+chloride
PubChem CID	10477;
RTECS number	GT2275000;
UNII	697I61NSA0 ;
UN number	1589
CompTox Dashboard (EPA)	DTXSID4021551 ;
	InChI InChI=1S/CClN/c2-1-3 Key: QPJDMGCKMHUXFD-UHFFFAOYSA-N ;
	SMILES ClC#N;
Properties
Chemical formula	CNCl
Molar mass	61.470 g mol−1
Appearance	Colorless gas
Odor	acrid
Density	2.7683 mg mL−1 (at 0 °C, 101.325 kPa)
Melting point	−6.55 °C (20.21 °F; 266.60 K)
Boiling point	13 °C (55 °F; 286 K)
Solubility in water	soluble
Solubility	soluble in ethanol, ether
Vapor pressure	1.987 MPa (at 21.1 °C)
Magnetic susceptibility (χ)	-32.4·10−6 cm3/mol
Thermochemistry
Std molar; entropy (S⦵298)	236.33 J K−1 mol−1
Std enthalpy of; formation (ΔfH⦵298)	137.95 kJ mol−1
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	Highly toxic; forms cyanide in the body
	GHS labelling:
Pictograms
Signal word	Danger
NFPA 704 (fire diamond)	4 0 2
Flash point	nonflammable
	NIOSH (US health exposure limits):
PEL (Permissible)	none
REL (Recommended)	C 0.3 ppm (0.6 mg/m3)
IDLH (Immediate danger)	N.D.
Safety data sheet (SDS)	inchem.org
Related compounds
Related alkanenitriles	Hydrogen cyanide; Thiocyanic acid; Cyanogen iodide; Cyanogen bromide; Cyanogen fluoride; Acetonitrile; Aminoacetonitrile; Glycolonitrile; Cyanogen;
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Cyanogen chloride is a highly toxic chemical compound with the formula CNCl. This linear, triatomic pseudohalogen is an easily condensed colorless gas. More commonly encountered in the laboratory is the related compound cyanogen bromide, a room-temperature solid that is widely used in biochemical analysis and preparation.

^ Lide, David R., ed. (2006). CRC Handbook of Chemistry and Physics (87th ed.). Boca Raton, FL: CRC Press. ISBN 0-8493-0487-3.
^ "CYANOGEN CHLORIDE (CK)". The Emergency Response Safety and Health Database. NIOSH. 9 July 2021.
^ ^a ^b ^c ^d ^e NIOSH Pocket Guide to Chemical Hazards. "#0162". National Institute for Occupational Safety and Health (NIOSH).

[1] Lide, David R., ed. (2006). CRC Handbook of Chemistry and Physics (87th ed.). Boca Raton, FL: CRC Press. ISBN 0-8493-0487-3.

[niosh-2] "CYANOGEN CHLORIDE (CK)". The Emergency Response Safety and Health Database. NIOSH. 9 July 2021.

[PGCH-3] NIOSH Pocket Guide to Chemical Hazards. "#0162". National Institute for Occupational Safety and Health (NIOSH).

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