I have read a lot on the forum and seen some hints that you should not drop gold from an AP solution. I don't know if that is just because it will be of lower quality or if there are any problems.
To detail what I've done so far...
1. I had a lot of fingers that I decided to try the AP process on. I thought that I had approximately 10 grams of gold. So I started a batch with AP. When the effect dropped I added HCl or H2O2 to get the process goint again. When the volume became too big I removed some of the solution. In the end I thought I had some undissolved copper so I think I overdosed the H2O2... Now I know I did but then I only had a feeling that the gold foils were disappearing.
2. I removed the rest of the AP solution and washed the gold foils repeatedly in water.
3. I dissolved the remaining gold in HCl+bleach.
4. I tried to get rid of excess acid and bleach by drying the solution outdoots.
5. Then I tried to drop the gold with SMB. As I got very little gold I added more SMB. In the end I got something that looked like dark brown gold with white crystals mixed in that refused to disappear when I washed it, not even when washing with HCl.
At this point I got tired on the experiment and put the jars with the solutions on a shelf outside. The autumn was really hectic so I left it standing until it dried up. Finally I have mixed up some tin chloride, added water to the dry salts and tested it for gold. The first batch of spent AP solution shows a low level of gold, the final batch shows higher levels and have a yellowish tint in the green. The gold with the white crystals is now a memikrokoden startar devicet med Activate Device och vantar pa att den ska bli ready, sen laser den in datat.ss of a heavy powder that behaves like heavy gold, on top of it there are a precipitation that reminds of AgCl in consistence and water with a bluish tint covering it all. Both layers have the same color, a pale greenish blue. The water doesn't test positive for gold.
So here are my question
-Can I precipitate the gold in the AP solution with SMB as usual or should I treat the solutions in some way first?
- Any idea of what the white crystal that formed with my gold was?
- Did I precipitate copper with my gold as I put too much SMB in the solution?
My plan is to :
1. Try to drop the gold from the AP solutions with SMB.
2. Redissolv the dirty gold, filter and drop it again with SMB.
3. Add a bit of copper to the AP solution after dropping the gold to see if something cements out on the copper.
4. Read responses to this post and saying "Dohhh!" when I read the advice too late... better make it the first point.
Looking forward for good advices.
/Goran
To detail what I've done so far...
1. I had a lot of fingers that I decided to try the AP process on. I thought that I had approximately 10 grams of gold. So I started a batch with AP. When the effect dropped I added HCl or H2O2 to get the process goint again. When the volume became too big I removed some of the solution. In the end I thought I had some undissolved copper so I think I overdosed the H2O2... Now I know I did but then I only had a feeling that the gold foils were disappearing.
2. I removed the rest of the AP solution and washed the gold foils repeatedly in water.
3. I dissolved the remaining gold in HCl+bleach.
4. I tried to get rid of excess acid and bleach by drying the solution outdoots.
5. Then I tried to drop the gold with SMB. As I got very little gold I added more SMB. In the end I got something that looked like dark brown gold with white crystals mixed in that refused to disappear when I washed it, not even when washing with HCl.
At this point I got tired on the experiment and put the jars with the solutions on a shelf outside. The autumn was really hectic so I left it standing until it dried up. Finally I have mixed up some tin chloride, added water to the dry salts and tested it for gold. The first batch of spent AP solution shows a low level of gold, the final batch shows higher levels and have a yellowish tint in the green. The gold with the white crystals is now a memikrokoden startar devicet med Activate Device och vantar pa att den ska bli ready, sen laser den in datat.ss of a heavy powder that behaves like heavy gold, on top of it there are a precipitation that reminds of AgCl in consistence and water with a bluish tint covering it all. Both layers have the same color, a pale greenish blue. The water doesn't test positive for gold.
So here are my question
-Can I precipitate the gold in the AP solution with SMB as usual or should I treat the solutions in some way first?
- Any idea of what the white crystal that formed with my gold was?
- Did I precipitate copper with my gold as I put too much SMB in the solution?
My plan is to :
1. Try to drop the gold from the AP solutions with SMB.
2. Redissolv the dirty gold, filter and drop it again with SMB.
3. Add a bit of copper to the AP solution after dropping the gold to see if something cements out on the copper.
4. Read responses to this post and saying "Dohhh!" when I read the advice too late... better make it the first point.
Looking forward for good advices.
/Goran