Electropolishing Gold
Quesion: Can you give me a formulation for the electropolishing of gold particularly 14- and 18-karat gold?
Quesion:
Can you give me a formulation for the electropolishing of gold particularly 14- and 18-karat gold? J.J.
Answer:
I am not aware of any formulations that are completely reliable. However, one formulation that has been used in the jewelry business is as follows:
Component Concentration
Potassium cyanide 65 g/liter
Phosphoric acid 18 g/liter
Sodium potassium tartrate 15 g/liter
Ammonium hydroxide 2.5 mL/liter
A voltage of 8 –10 volts and a temperature of 50–60°C should be used. Great care should be exercised with this process in that a large amount of gold can be removed in a short period of time.
In any event, some experimentation will be required to get the results you are looking for.
Related Content
-
Innovation in Plating on Plastic
Plating on advanced plastics solution offers improved adhesion, temperature resistance and cost savings.
-
An Overview of Electroless Nickel Plating
By definition, electroless plating is metal deposition by a controlled chemical reaction.
-
Products Finishing Reveals 2023 Qualifying Top Shops
Each year PF conducts its Top Shops Benchmarking Survey, offering shops a tool to better understand their overall performance in the industry. The program also recognizes shops that meet a set of criteria to qualify as Top Shops.
