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379867

Sigma-Aldrich

Potassium dicyanoaurate(I)

99.95% trace metals basis

Synonym(s):

Gold (I) potassium cyanide, Potassium gold cyanide

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About This Item

Linear Formula:
KAu(CN)2
CAS Number:
13967-50-5
Molecular Weight:
288.10
Beilstein:
6235525
EC Number:
237-748-4
MDL number:
MFCD00011414
UNSPSC Code:
12352302
PubChem Substance ID:
24863695
NACRES:
NA.23

Assay

99.95% trace metals basis

form

crystalline

impurities

≤550.0 ppm Trace Metal Analysis

density

3.45 g/mL at 25 °C (lit.)

SMILES string

[K+].N#C[Au-]C#N

InChI

1S/2CN.Au.K/c2*1-2;;/q;;-1;+1

InChI key

OQHPFUBKFKRHKZ-UHFFFAOYSA-N

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General description

Potassium dicyanoaurate(I) is an inorganic salt, soluble in water and sparingly soluble in alcohol. It is widely used as an electrolyte in the electrodeposition of gold on various substrates such as thin films and electrodes.

Application

Potassium dicyanoaurate(I) can be used:
  • To prepare gold nanowire array electrodes with fast charge transfer ability.
  • As a supporting electrolyte for the electrodeposition of gold in organic media.
  • To prepare polypyrrole-ClO4 gas sensors with fast response time and high sensitivity to volatile organic compounds.
  • In the electrochemical preparation of gold nanoparticle composites.

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

6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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’.

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Gold electrodeposition in organic media
Lorena M.A. Monzon, et al.},
Journal of Electroanalytical Chemistry, 657, 54-60 (2011)
Influence of substrate, additives, and pulse parameters on electrodeposition of gold nanoparticles from potassium Dicyanoaurate
Parisa Vahdatkhah and Sayed Khatiboleslam Sadrnezhaad
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 46, 2584-2592 (2015)
Gas sensing ability of a nanostructured conducting polypyrrole film prepared by catalytic electropolymerization on Cu/Au interdigital electrodes
Naader Alizadeh, et al.
Electroanalysis, 25, 2181-2192 (2013)
Effects of Nanowire Length on Charge Transport in Vertically Aligned Gold Nanowire Array Electrodes
Hideyuki Nakanishi, et al.
Langmuir, 34, 15674-15680 (2018)
Mohammad Fatehi et al.
Biophysical journal, 92(4), 1241-1253 (2006-12-05)
Single channel and macroscopic current recording was used to investigate block of the cystic fibrosis transmembrane conductance regulator (CFTR) Cl(-) channel pore by the permeant anion Au(CN)2(-). Block was 1-2 orders of magnitude stronger when Au(CN)2(-) was added to the
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