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Topic: Removing borax from gold  (Read 3545 times)

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Offline ajsammut

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Removing borax from gold
« on: December 27, 2015, 06:02:46 PM »
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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Offline Hunter2

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Re: Removing borax from gold
« Reply #1 on: December 28, 2015, 07:15:50 AM »
Sulfuric acid will not attack gold, if it is real gold and not an alloy. Borax schould be solouble in water already.
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Offline KaliyaK

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Re: Removing borax from gold
« Reply #2 on: December 29, 2015, 08:55:13 PM »
Just submerse the sample in boiling hot water and leave it the for a few hours, borax should dissolve. Also gold is very chemical resistant, so don't worry, your gold will not be lost!
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