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415154

Sigma-Aldrich

Potassium tetracyanonickelate(II) hydrate

Synonym(s):

Dipotassium nickel(2+) tetracyanide

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About This Item

Linear Formula:
K2Ni(CN)4 · xH2O
CAS Number:
Molecular Weight:
240.96 (anhydrous basis)
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.23

vapor pressure

740 mmHg ( 25 °C)(lit.)

Quality Level

form

powder

reaction suitability

reagent type: catalyst
core: nickel

density

1.875 g/mL (lit.)

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

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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.

pictograms

Skull and crossbonesEnvironment

signalword

Danger

Hazard Classifications

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

Storage Class

6.1B - Non-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


Certificates of Analysis (COA)

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