Skip to Content
MilliporeSigma
All Photos(2)

Key Documents

View All Documentation

12902

Sigma-Aldrich

Potassium hexacyanocobaltate(III)

≥97.0%

Synonym(s):

Tripotassium hexacyanocobaltate(III)

Sign Into View Organizational & Contract Pricing
All Photos(2)

About This Item

Linear Formula:
K3Co(CN)6
CAS Number:
13963-58-1
Molecular Weight:
332.33
EC Number:
237-742-1
MDL number:
MFCD00011391
UNSPSC Code:
12352202
PubChem Substance ID:
329749935
NACRES:
NA.55

Quality Level

100

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

13 - Non Combustible Solids

wgk_germany

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
A 59Co NMR relaxation probe of macromolecule anionic binding sites.
T Raj et al.
Analytical biochemistry, 106(2), 373-376 (1980-08-01)
View All Related Papers

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