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https://www.pfonline.com/articles/electropolishing-gold
Jul 01, 2005 · 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.Estimated Reading Time: 30 secs
https://patents.google.com/patent/DE102014213923A1/en
The invention describes a method for electropolishing workpieces, such as jewelery, with surfaces containing precious metal. The workpieces are smoothed in an aqueous electrolyte solution with a component, for example sulfuric acid. The workpiece is contacted anodically before immersion in the electrolyte solution.Author: Robert Litschko, Uwe Knop
https://www.ganoksin.com/article/electroplating-jewellery/
Jun 21, 2016 · Electropolishing of Gold Jewellery The equipment for electropolishing is very similar to that for electroplating as seen in the sketch, Figure 7, and is manufactured by the same companies. The cathode is normally stainless steel or titanium as is …Bath temperature: 40-50°C
https://www.pfonline.com/articles/electropolishing-of-gold-and-gold-alloys
Oct 31, 2013 · A. I don’t have a non-cyanide formulation for electropolishing of gold, however such solutions are available commercially. A manual on gold jewelry manufacturing titled "Handbook on Finishing in Gold Jewellery Manufacture" by Valerio Faccenda has a nice section in electropolishing of gold and gold alloys. Next up. X.
https://www.finishing.com/22/58.shtml
Jan 11, 2012 · Electrocleaning vs electropolishing of gold jewellery January 11, 2012. Q. Hello, myself from India, a goldsmith. New to electroplating in my work. Bought a rhodium pen plating and gold 24 kt solution from reputed brand. How to clean my rings? I searched the …
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