posted on Feb, 28 2012 @ 09:40 PM
reply to post by tauristercus
Simply by VERY carefully pouring off the clear liquid into another container. Then add enough fresh clean water to cover the brown sediment, leave to
stand until the brown sediment has re-settled on the bottom (because adding fresh water will most likely stir it up), then VERY carefully pour of the
water into another container. Repeat this adding water/let settle/pour off 3 times in total ... the aim being to completely dilute and pour of any
remaining traces of acid. On the last pour off, try to pour off as much water as possible leaving the brown sediment behind. Then just let the
remaining water evaporate and the sediment to dry.
I refine precious metals often and have done for 20 years. Aside from the fact that you will loose too much and that the refiners we use don't lose
as much and handle bulk, so it's cheaper, you have written a very helpful article. S&F
The reason I highlighted your quote above, is that I found a very simple trick to separate metals from water.
Instead of waiting so long the metal to settle make the water heavy by adding dish-washing liquid.
When it is cleaned and you are ready to melt, pour it out wet and it wont blow away, BUT it will leach the impurities from the water, so...
Also, most people doing it on the cheap use charcoal as crucible.
Q. How long does it take to dissolve away the impurities of a, say, heavy 14k gents ring?
Q#2, have you encountered gold+platinum alloys, yet? Platinum tends to 'take over' if you remelt an alloy containing the two (found in some high-end
white gold alloys).
Last question / point = now what?
If you sell it, it still has to be assayed and while your investment is raising in price, you will still have to sell it at a discount.