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Chemistry Forums for Students => Inorganic Chemistry Forum => Topic started by: ajsammut on December 27, 2015, 06:02:46 PM

Title: Removing borax from gold
Post by: ajsammut 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

Title: Re: Removing borax from gold
Post by: Hunter2 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.

Title: Re: Removing borax from gold
Post by: KaliyaK 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!