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545031

Sigma-Aldrich

Potassium tetracyanonickelate(II)

>99.9% trace metals basis

Synonym(s):

Dipotassium tetracyanonickelate, Potassium nickel(II) cyanide

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About This Item

Linear Formula:
K2Ni(CN)4
CAS Number:
14220-17-8
Molecular Weight:
240.96
EC Number:
238-082-7
MDL number:
MFCD00049669
UNSPSC Code:
12352302
PubChem Substance ID:
24878804

assay

>99.9% trace metals basis

form

powder

reaction suitability

reagent type: catalyst
core: nickel

SMILES string

[K+].[K+].N#C[Ni--](C#N)(C#N)C#N

InChI

1S/4CN.2K.Ni/c4*1-2;;;/q;;;;2*+1;-2

InChI key

QOOHKAMDWOKKBR-UHFFFAOYSA-N

pictograms

Skull and crossbonesEnvironment
GHS06,GHS09

signalword

Danger

Hazard Classifications

Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Aquatic Acute 1 - Aquatic Chronic 1

supp_hazards

EUH032

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKBJ2494V
MKBF9713
MKBD3317
13522EH
02105ME

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J Silva-Avalos et al.
Applied and environmental microbiology, 56(12), 3664-3670 (1990-12-01)
Ten bacterial isolates capable of growth on tetracyanonickelate(II) [K2[Ni(CN)4]] (TCN) as the sole nitrogen source were isolated from soil, freshwater, and sewage sludge enrichments. Seven of the 10 were identified as pseudomonads, while the remaining 3 were classified as Klebsiella
S F Chow et al.
The Journal of biological chemistry, 261(16), 7264-7269 (1986-06-05)
The structure of the rhodanese-tetracyanonickelate (E X Ni(CN)2-4) complex has been characterized here in spectral and physical studies using urea as a structural perturbant. UV difference absorption, sedimentation velocity ultracentrifugation, fluorescence, and circular dichroism data show no significant conformational differences
Fehmi Bardak et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 71(5), 1896-1900 (2008-08-23)
In this study the M(IN)(2)Ni(CN)(4) [where M: Co, Ni, and Cd, and IN: isonicotinic acid, abbreviated to M-Ni-IN] tetracyanonickelate and some metal halide complexes with the following stoichiometries: M(IN)(6)X(2) (M: Co; X: Cl and Br, and M: Ni; X: Cl
Hyouk K Kwon et al.
FEMS microbiology letters, 214(2), 211-216 (2002-09-28)
A new yeast strain capable of degrading free and metallocyanides was isolated from coke-plant wastewater. The isolated strain designated MCN2 was identified as Cryptococcus humicolus by 26S rDNA sequencing and phylogenetic analysis. During growth of the isolate with KCN as
C M Kao et al.
Letters in applied microbiology, 41(2), 216-220 (2005-07-22)
The ability of Azotobacter vinelandii, a N(2)-fixing bacterium, to biodegrade tetracyanonickelate (TCN) was evaluated. The amounts of TCN were measured spectrophotometrically. Ammonia was determined colorimetrically by the indophenol method. The produced methane from TCN conversion by A. vinelandii was detected
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