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Cyanogen chloride information


Cyanogen chloride
Skeletal formula of cyanogen chloride
Ball and stick model of cyanogen chloride
Ball and stick model of cyanogen chloride
Spacefill 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 checkY
3D model (JSmol)
  • Interactive image
Abbreviations CK
ChemSpider
  • 10045 checkY
ECHA InfoCard 100.007.321 Edit this at Wikidata
EC Number
  • 208-052-8
MeSH cyanogen+chloride
PubChem CID
  • 10477
RTECS number
  • GT2275000
UNII
  • 697I61NSA0 checkY
UN number 1589
CompTox Dashboard (EPA)
  • DTXSID4021551 Edit this at Wikidata
InChI
  • InChI=1S/CClN/c2-1-3 checkY
    Key: QPJDMGCKMHUXFD-UHFFFAOYSA-N checkY
SMILES
  • ClC#N
Properties[1]
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 (S298)
236.33 J K−1 mol−1
Std enthalpy of
formation fH298)
137.95 kJ mol−1
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
Highly toxic;[2] forms cyanide in the body[3]
GHS labelling:
Pictograms
GHS04: Compressed Gas GHS05: Corrosive GHS06: Toxic GHS09: Environmental hazard
Signal word
Danger
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 4: Very short exposure could cause death or major residual injury. E.g. VX gasFlammability 0: Will not burn. E.g. waterInstability 2: Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water. E.g. white phosphorusSpecial hazards (white): no code
4
0
2
Flash point nonflammable[3]
NIOSH (US health exposure limits):
PEL (Permissible)
none[3]
REL (Recommended)
C 0.3 ppm (0.6 mg/m3)[3]
IDLH (Immediate danger)
N.D.[3]
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).
checkY verify (what is checkY☒N ?)
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.

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

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