Preparative And Characterization

Bulletin of Materials Science

, Volume 6, Issue 2, pp 165-175

Electrochemical preparation of potassium gold cyanide

  • Indira RajagopalAffiliated withMaterials Science Division, National Aeronautical Laboratory
  • , S R RajagopalanAffiliated withMaterials Science Division, National Aeronautical Laboratory

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Abstract

The essential requirements for the industrial preparation of potassium gold cyanide (pgc) are: (a) high rate of dissolution and (b) smooth and uniform dissolution. Employing galvanostatic and potentiostatic polarisation data and observations on the surface topography of anodes dissolved by both the techniques, it is shown that potentiostatic dissolution of gold in potassium cyanide at +0ยท345 V satisfies the above requirements.

Keywords

Electrochemical preparation anodic dissolution gold plating salt plating potassium gold cyanide