Removing borax from gold

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Removing borax from gold

Postby ajsammut on December 27th, 2015, 7:46 am 

I need to remove borax coating with a piece of gold. What is the optimum concentration of sulfuric acid to use? Just enough to remove borx and not do any harn to the gold. Thanks
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Re: Removing borax from gold

Postby Crystal grower on April 25th, 2016, 12:54 am 

You can use concentrated acid as gold dissolves only in aqua regia. But why don't you just dissolve it water, borax is soluble enough, or am I missing something?
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Re: Removing borax from gold

Postby redwhitechem on June 10th, 2016, 6:11 am 

Easy way is to remove boarx from with hot dilute sulfuric acid.
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