chrisjames
Active member
- Joined
- May 12, 2015
- Messages
- 29
Hi guys,
I think I need a bit of help if possible.
I have been refining various k jewellery and have followed instructions to the letter. All has gone fine apart from the final gold drop. I had a large jug of gold chloride which I allowed settle for 24 hours before filtering (using coffee filters as I had no lab ones) I then divided the solution into two coffee pots to precipitate. This is where I messed up...
I put a spoonful of smb in a cup of distiller water and added it to pot one then did the same to pot two, however added two tea spoons of smb (I think) the first pot started to drop immediately but the second one only partially dropped then stopped, the solution is still yellow where as the first pot is mostly clear minus some blue from copper (I did enquart however there was some 22k gold that I didn't bother with so assume that's where the copper came from)
The solution has around 40g of gold in so I'm keen to get it dropped.
I've read hoke previously and trawled smb questions but can't find this exact question asked.
I've left the solution for 24 hours but it still hasn't changed. My first thought was to lightly boil the solution and reduce it as I put some water in with a second load of smb (I know I messed up) there's way too much smb in solution I know but when I put smb in it almost goes to precipitate then re-absorbs the gold.
My feeling is that the solution is way to alkaline from the smb so should I boil to reduce, add Hcl and try to drop?
Any help would be great, thanks in advance.
Kind regards,
Chris
I think I need a bit of help if possible.
I have been refining various k jewellery and have followed instructions to the letter. All has gone fine apart from the final gold drop. I had a large jug of gold chloride which I allowed settle for 24 hours before filtering (using coffee filters as I had no lab ones) I then divided the solution into two coffee pots to precipitate. This is where I messed up...
I put a spoonful of smb in a cup of distiller water and added it to pot one then did the same to pot two, however added two tea spoons of smb (I think) the first pot started to drop immediately but the second one only partially dropped then stopped, the solution is still yellow where as the first pot is mostly clear minus some blue from copper (I did enquart however there was some 22k gold that I didn't bother with so assume that's where the copper came from)
The solution has around 40g of gold in so I'm keen to get it dropped.
I've read hoke previously and trawled smb questions but can't find this exact question asked.
I've left the solution for 24 hours but it still hasn't changed. My first thought was to lightly boil the solution and reduce it as I put some water in with a second load of smb (I know I messed up) there's way too much smb in solution I know but when I put smb in it almost goes to precipitate then re-absorbs the gold.
My feeling is that the solution is way to alkaline from the smb so should I boil to reduce, add Hcl and try to drop?
Any help would be great, thanks in advance.
Kind regards,
Chris