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HomeProduct name listCOBALT(II) CYANIDE

COBALT(II) CYANIDE

  • CAS NO.:20427-11-6
  • Empirical Formula: C2H2CoN2O
  • Molecular Weight: 128.98
  • MDL number: MFCD01076547
  • EINECS: 626-335-8
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2023-10-17 17:11:54
COBALT(II) CYANIDE Structural

What is COBALT(II) CYANIDE?

Chemical properties

pink to reddish brown powder(s) or needles [MER06]

Structure and conformation

A light brown precipitate of Co(CN)2.2 or 2·5H2O can be obtained from cobalt(II) chloride and potassium cyanide solutions. This can be dehydrated at 250°in a stream of nitrogen to the blue anhydrous cyanide. Both the hydrated and the anhydrous compounds have magnetic moments (3.27 and 312 B.M. respectively) which are much lower than is expected for three unpaired electrons. The crystal structures of these compounds have been interpreted as being that of soluble Prussian blue with one cobalt atom being low spin (one unpaired electron) surrounded by six carbon atoms while the other is high spin (three unpaired electrons) being surrounded by six nitrogen atoms as nearest neighbours.

Properties of COBALT(II) CYANIDE

Melting point: decomposes at 300℃ [CRC10]
Density  anhydrous: 1.872 [KIR79]
solubility  insoluble in H2O, acid solutions
form  pink-brown needles
color  pink-brown needles
Water Solubility  insoluble H2O, acids, methyl acetate; soluble alkali cyanides [MER06]

Safety information for COBALT(II) CYANIDE

Signal word Danger
Pictogram(s)
ghs
Skull and Crossbones
Acute Toxicity
GHS06
ghs
Environment
GHS09
GHS Hazard Statements H300:Acute toxicity,oral
H310:Acute toxicity,dermal
H330:Acute toxicity,inhalation
H410:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes P260:Do not breathe dust/fume/gas/mist/vapours/spray.
P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P273:Avoid release to the environment.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P284:Wear respiratory protection.
P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

Computed Descriptors for COBALT(II) CYANIDE

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