Skip to Content
Merck
All Photos(2)

Documents

12902

Sigma-Aldrich

Potassium hexacyanocobaltate(III)

≥97.0%

Synonym(s):

Tripotassium hexacyanocobaltate(III)

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
K3Co(CN)6
CAS Number:
Molecular Weight:
332.33
EC Number:
MDL number:
UNSPSC Code:
12352202
PubChem Substance ID:
NACRES:
NA.55

Quality Level

Assay

≥97.0%

form

crystalline

reaction suitability

reagent type: catalyst
core: cobalt

impurities

≤0.1% free cyanide

density

1.878 g/mL at 25 °C (lit.)

anion traces

sulfate (SO42-): ≤500 mg/kg

cation traces

Fe: ≤50 mg/kg

suitability

suitable for acidity or alkalinity (alkalinity <= 0.15 meq/g)

SMILES string

[K+].[K+].[K+].N#C[Co-3](C#N)(C#N)(C#N)(C#N)C#N

InChI

1S/6CN.Co.3K/c6*1-2;;;;/q;;;;;;-3;3*+1

InChI key

VSUFNKULKBVQQW-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Application

Potassiumhexacyanocobaltate(III) can be used as a complexing agent to synthesize double metal cyanide catalyst:
  • For the chemoselective reductive amination of carbonyl compounds with aromatic amines to synthesize substituted amines in the presence of polymethylhydrosiloxane as a reducing agent.
  • In the ring opening polymerization of propylene oxide to synthesize polyols.
  • In the coupling reaction of CO2 with hydrous epoxides to synthesize cyclic carbonates.

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Xin Zhang et al.
ChemSusChem, 14(1), 467-478 (2020-10-13)
Electrolytic water splitting using surplus electricity represents one of the most cost-effective and promising strategies for hydrogen production. The high overpotential of the oxygen-evolution reaction (OER) caused by the multi-electron transfer process with a high chemical energy barrier, however, limits
The reduction of iodopentamminecobalt (III) iodide and potassium hexacyanocobaltate (III) with potassium in liquid ammonia.
Watt GW and Thompson RJ.
J. Inorg. Nucl. Chem., 9(3), 311-314 (1959)
Shah Raj Ali et al.
Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life, 37(3), 225-234 (2007-03-14)
It has been proposed that metal cyanide complexes would have acted as effective prebiotic catalysts. Insoluble metal cyanide complexes could have concentrated biomonomers from the dilute prebiotic soup, facilitating certain prebiotic reactions. In the light of the above hypothesis, interaction
E Ragg et al.
Journal of inorganic biochemistry, 21(3), 253-261 (1984-07-01)
The binding of [Co(CN)6]3-, and that of [Fe(CN)6]3- and [Ru(CN)6]4- using a competitive method, to horse cytochrome c has been studied by 59Co NMR spectroscopy. At I = 0.07 M, without added salt and in 2H2O at pH* 7.3 (measured
Edward E Little et al.
Environmental science and pollution research international, 14(5), 333-337 (2007-08-29)
Cobalt cyanide complexes often result when ore is treated with cyanide solutions to extract gold and other metals. These have recently been discovered in low but significant concentrations in effluents from gold leach operations. This study was conducted to determine

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service