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Potassium tetracyanonickelate(II) hydrate

Name: Potassium tetracyanonickelate(II) hydrate
Brand: ALDRICH

Synonym(s):

Dipotassium nickel(2+) tetracyanide

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About This Item

Linear Formula:

K₂Ni(CN)₄ · xH₂O

CAS Number:

339527-86-5

Molecular Weight:

240.96 (anhydrous basis)

NACRES:

NA.23

PubChem Substance ID:

24865979

UNSPSC Code:

12352302

EC Number:

238-082-7

MDL number:

MFCD00150396

Form:

powder

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Properties

vapor pressure

740 mmHg ( 25 °C)(lit.)

Quality Level

100

form

powder

reaction suitability

core: potassium, reagent type: catalyst

density

1.875 g/mL (lit.)

application(s)

battery precursors
catalysts
material synthesis precursor

SMILES string

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

InChI

1S/4CN.2K.Ni.H2O/c4*1-2;;;;/h;;;;;;;1H2/q;;;;2*+1;-2;

InChI key

LORCEWUZCQZQEK-UHFFFAOYSA-N

Description

General description

Potassiumtetracyanonickelate (II) hydrate, also known as nickel(II) potassium cyanide, isa highly water-soluble compound used in electroplating and as a reagent inchemical synthesis.

Application

Electronic Structure: Study of the electronic structure of tetracyanonickelate(II) complexes, essential for applications in materials science and coordination chemistry (JJ Oppenheim, BJ McNicholas, J Miller, 2019).

Potassium tetracyanonickelate(II) hydrate can be used:

As a precursor for the synthesis of Hofmann-type metal-organic frameworks (MOFs) with high open metal sites density.
As a precursor in the synthesis of an anion-exchange resin for the removal of residual cyanide complexes in industrial plating wastewater.