2 ways of silvering melange, different ways of removing silver

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Published on Nov 14, 2019
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Hello, today I will show three ways of recycling silver-plated plug contacts 1. the method of dissolving in electrolyte and ammonium nitrate.... the method, if there is no concentrated sulfuric acid available.. (high consumption of electrolyte and ammonium nitrate, and difficult filtration) 2. the melange method (using 70% acetic acid), you need concentrated sulfuric acid, electrolyte, ammonium nitrate and acetic acid... +... less acid consumption than complete etching, does not corrode copper, the process is slower than simple melange, the highest yield. -... more expensive than simple melange (acetic acid) 3... melange using concentrated sulfuric acid and a solution of electrolyte and ammonium nitrate +... fast removal of silver plating, the lowest consumption of acids and ammonium nitrate -... the process can proceed with the release of nitrogen dioxide (poison), eats away copper The video is long, but many people just ask to show the whole process... Let's watch, friends

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