This “crap” can be converted back to silver but it takes 2 steps – you cant just melt it down or you will lose it. In the background you see our silver in solution In the next slide you are going to see some of the last of the impurities that “precipitated”ġ0 The crap that is floating is Silver Chloride – this is the silver that was still in the black powder before we dissolved it in AR. I believe it is referred to as “auric chloride” – but don’t quote me on that. People have been doing this for thousands of years….ĩ Once all the gold is dissolved (and boiled down a little) you end up with a thick deep golden liquid. Do you see it? Near the stirring rod? This smoke is very similar to the nasty brown smoke that comes from the Nitric Acid but this time it has a golden color… Very cool. Notice that it makes a beautiful gold color in the solution.Ĩ Notice the smoke…. This silver CAN NOT be melted down.ħ Adding the AR causes the gold to immediately start to dissolveĪdding the AR causes the gold to immediately start to dissolve. Any silver left in the gold will be converted to “Silver Chloride” – or silver in a salt form. This will dissolve the gold and “put it into solution” – ironically it will not desolve the silver that is there. It is a mix of 1 part Nitric Acid and 3 (or 4) parts Hydrochloric Acid. It is the only known acid that will desolve gold. On the right is “Aqua Regia” – or “Royal Water”. Long story short, if you add copper you precipitate pure silver.Ħ Here is that gold again. This solution is called Silver Nitrate Later we will “drop” the silver from this solution by adding copper. That is about 2.5oz of nearly pure silver.
This is what the solution I poured off looks like. We will deal with that in a secondĥ This is what the solution I poured off looks like. There are still impurities in here since some silver gets trapped (surrounded by) gold. Melting this would get you “pretty gold”. Yes, it is an ugly black powder – but this is gold in a metal form. Pouring off the solution leaves semi-pure gold.
In this picture it looks to be on the green side but that is because it just started.Ĥ Pouring off the solution leaves semi-pure gold This mixture will tend to turn green for copper and blue for silver. The disagreeable brown smoke is the result of the Nitric Acid working on the non-gold metals. I am heating this mixture to speed things up. Here are the corn flakes in a mix of 35% Nitric Acid and water. If you were to just splash this with some HCL (Hydrochloric Acid) they would become “pretty” but we don’t care because the next step is to dissolve all of this in Nitric Acid Gold will not dissolve in Nitric Acid – but nearly every other metal will so in the next step we put all of the copper and silver “into solution”ģ Here are the corn flakes in a mix of 35% Nitric Acid and water The molten inquarted gold is poured into cold water to “cornflake” the gold into small blobs that are easy to dissolve. The gold and silver are melted together and this “dilutes” the gold so that the non-gold metals trapped in the 14K chain can be effectively dissolved with nitric acid. The 14k gold chain must be inquarted (quartered) with pure silver. 1 The 14k gold chain must be inquarted (quartered) with pure silver
0 kommentar(er)
