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Merck
CN

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

Key Documents

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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

Signal Word

Danger

Hazard Statements

H300 + H310 + H330,H410

Hazard Classifications

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

Supplementary Hazards

EUH032

Storage Class Code

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

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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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
Jae-Hun Chu et al.
Environmental science and pollution research international, 27(33), 41688-41701 (2020-07-23)
Cyanide is highly toxic and must be destroyed or removed before discharge into the environment. This study examined the ability of commercial anion-exchange resins to remove residual cyanide complexes from industrial plating wastewater as a complement to conventional treatment. Cyanide
H Yanase et al.
Applied microbiology and biotechnology, 53(3), 328-334 (2000-04-20)
A fungus with the ability to utilize a metalcyano compound, tetracyanonickelate (II) ¿K2[Ni (CN)4]; TCN¿, as its sole source of nitrogen was isolated from soil and identified as Fusarium oxysporum N-10. Both intact mycelia and cell-free extract of the strain
S F Chow et al.
The Journal of biological chemistry, 260(29), 15516-15521 (1985-12-15)
Tetracyanonickelate (Ni(CN)4(2-)) was used as a probe for the active site of sulfur-free rhodanese (E) in physical and kinetic studies. Ni(CN)4(2-) quenches the intrinsic fluorescence as well as the fluorescence of enzyme-bound 2-anilinonaphthalene-8-sulfonic acid (2,8-ANS), an inhibitor that is competitive
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
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