I have been following a few tutorials on processing ceramic CPU's.
"Indeeditdoes" has a real nice video on the process on You Tube, and I have followed it exactly as he did.
Part 1
https://www.youtube.com/watch?v=tQ_R8Gr26kk&list=PLgMkjzPpTqla6TqgZ6StacGSZ0C0u7Pvz&index=2
Part 2
https://www.youtube.com/watch?v=Hv4CcaTVJqY&list=PLgMkjzPpTqla6TqgZ6StacGSZ0C0u7Pvz&index=6
Everything was great (exactly like his video) until the drying process (which he didn't go into in the video)
I was using (2) 2000 Ml beakers, one for heating the acids and CPU's for oxidizing out the gold and base metals, and the other for filtering. I got all the gold into solution (tested with SC to be sure), and when it cooled, I poured from the first beaker into the 2nd beaker (with Ice), and used a few drops of sulfuric acid to leech the lead, and then filtered the solution to a new fresh beaker and added Urea to remove the Nitric acid (there was no reaction so I knew the acid was spent). I then added SMB and let the gold drop out overnight. The following day I did another SC test and there was no gold left in solution.
I could see the familiar black dust at the bottom. I then drained the majority of the solution, and then put the dust in a smaller 100 ML beaker for holding (with about 1/3 beaker of water to keep the gold suspended in the beaker).
After I had done a few runs, I collected the gold dust in the beaker, and then decided to fast dry the material, so I put the beaker on the warmer and let it dry out.
I was most surprised to find the dust never turned an orange color, but stayed black as Zinc powder even after completely dried.
Does anyone know why this would be? Is this normal? All the videos I have seen show the gold powder with a bright orange color after drying, but mine is still pitch black. I have not smelted it yet, but was hoping someone could help me to understand why the colorization.
Did I do something wrong? (not sure what I could have done wrong, since the pristine solution had the gold drop with SMB, and the dust looked just like the videos I watched until I let it dry over heat.
any help would be appreciated.
Thanks in Advance.
"Indeeditdoes" has a real nice video on the process on You Tube, and I have followed it exactly as he did.
Part 1
https://www.youtube.com/watch?v=tQ_R8Gr26kk&list=PLgMkjzPpTqla6TqgZ6StacGSZ0C0u7Pvz&index=2
Part 2
https://www.youtube.com/watch?v=Hv4CcaTVJqY&list=PLgMkjzPpTqla6TqgZ6StacGSZ0C0u7Pvz&index=6
Everything was great (exactly like his video) until the drying process (which he didn't go into in the video)
I was using (2) 2000 Ml beakers, one for heating the acids and CPU's for oxidizing out the gold and base metals, and the other for filtering. I got all the gold into solution (tested with SC to be sure), and when it cooled, I poured from the first beaker into the 2nd beaker (with Ice), and used a few drops of sulfuric acid to leech the lead, and then filtered the solution to a new fresh beaker and added Urea to remove the Nitric acid (there was no reaction so I knew the acid was spent). I then added SMB and let the gold drop out overnight. The following day I did another SC test and there was no gold left in solution.
I could see the familiar black dust at the bottom. I then drained the majority of the solution, and then put the dust in a smaller 100 ML beaker for holding (with about 1/3 beaker of water to keep the gold suspended in the beaker).
After I had done a few runs, I collected the gold dust in the beaker, and then decided to fast dry the material, so I put the beaker on the warmer and let it dry out.
I was most surprised to find the dust never turned an orange color, but stayed black as Zinc powder even after completely dried.
Does anyone know why this would be? Is this normal? All the videos I have seen show the gold powder with a bright orange color after drying, but mine is still pitch black. I have not smelted it yet, but was hoping someone could help me to understand why the colorization.
Did I do something wrong? (not sure what I could have done wrong, since the pristine solution had the gold drop with SMB, and the dust looked just like the videos I watched until I let it dry over heat.
any help would be appreciated.
Thanks in Advance.