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Sodium Cyanide wrongly added to Potassium Cyanide based Silver Plating Solution

April 7, 2011

A plater by mistake has added 10 kg (22.4lb)of sodium cyanide instead of KCN to a potassium cyanide based silver plating solution. The operating limit of free KCN is
8 - 12 oz.wt/gal.
What will be the effect on the plating deposit quality, if used as it is and the KCN addition done in the future?

Kebede Jimma
Plating Shop Senior Supervisor - Abu Dhabi, UAE

You will not notice any problem

Robert H Probert
Robert H Probert Technical Services

Garner, North Carolina

April 7, 2011

April 10, 2011

No harm done.
There are platers who use a combination of potassium and sodium cyanide for silver plating.

Sara Michaeli
Tel-Aviv-Yafo, Israel

Shouldn't be any problem

Trevor Crichton
R&D practical scientist
Chesham, Bucks, UK
April 18, 2011

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