I will do so upon recommendation! Thank you everyone
After some nitric acid baths i have a dense brown precipitate, what is this? (Images attached)
- Thread starter Ellias
- Start date
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Alright you guys were completely correct. I burned everything again on top with 100g of new ic chips (low grade. Yeah loterally everything is ash and the texture is very very different. A quick question ( does carbon prevent gold from dropping or stop gold from getting into solution?)
So another mistake i made is putting my gold in a very dirty melt dish. The brown is looking very VERY silver....
Do i have to season the crucible with borax prior to dropping gold? I seen it before and after.
@BGDOCK @Shark
Let’s try this one question at a time
Forms of Carbon can adsorb gold and thus can affect yield. Burn the IC chips until they are white then crush
Try using different crucibles for silver and gold otherwise you will have to get trace amounts of silver out of your gold.
Using borax while melting helps the metal flow and helps remove some impurities.
Forms of Carbon can adsorb gold and thus can affect yield. Burn the IC chips until they are white then crush
Try using different crucibles for silver and gold otherwise you will have to get trace amounts of silver out of your gold.
Using borax while melting helps the metal flow and helps remove some impurities.
I don't use flux when melting. If the gold appears to need fluxing, I go ahead and refine it again. I use borax to glaze the dish and leave it alone. I have one dish for gold that melted in for almost three years, and finally had to clean it. I add more borax, heated it very hot, and was pretty surprised at the amount of gold that showed up in it. But I heated it hotter than when melting, and poured out the excess flux until the dish looked good again. If I want super clean gold, I use a new dish for each melt.
Otherwise, follow Bgdocks advice on ashing again. One other thing, when trying to determine what the gold content is of specific items, don't add more or different materials mid test. It throws off the true value of the original materials.
Otherwise, follow Bgdocks advice on ashing again. One other thing, when trying to determine what the gold content is of specific items, don't add more or different materials mid test. It throws off the true value of the original materials.
