I picked up a Burmese Silver Bowl with repousse decoration of figures in landscape with buildings and the base with three fish, 16.5cm diameter, 360g / 11.59oz .
Just under £100 so not to bad,It tested for silver but had quite a lot of copper so I took it to be about 800 silver.
It had several very large cracks in it that had been repaired with lead solder.so would not have been a candidate for resale.
So I digested it and got about 300g of silver and rather a lot of rusty red goop in the bottom of my reaction chamber.
I am running the silver through my silver cell at the moment so I will not have any idea as to what was taken up with the silver for a week or two.
But the goop has given a very strong solution when processed with A.R.
I dropped the first strong batch and got a very fine black precipitate with S.M.B..so fine in fact that it ran through equiv. Whatman GF/D filter paper like it was a sieve.
Stanton test was black before dropping with a yellowish/orange hint around the sides and clean after.
So I have just had to let it settle and decant the excess fluid and put it back into A.R. to see if it will drop in a nice form when I drop it again.
But the gunk is still giving up metals into A.R. after 24hrs.(heated for four hours left over night flushed and re run-with fresh heated A.R.).
It closely resembles the silver cell slime I have been saving for later when dropped so I may just have to put them all together to pass on to some one better equipped for sorting out a jumble of platinum group metals.
Should every thing drop out of solution with S.M.B.?
It was as if I had used Ammonium Chloride instead of S.M.B The same very fine black precipitate.I was hoping to get a better separation ,I.E. positive Stanton test for P.G.M.'s after S.M.B..
Well got my gourd working ..Any ideas??
Just under £100 so not to bad,It tested for silver but had quite a lot of copper so I took it to be about 800 silver.
It had several very large cracks in it that had been repaired with lead solder.so would not have been a candidate for resale.
So I digested it and got about 300g of silver and rather a lot of rusty red goop in the bottom of my reaction chamber.
I am running the silver through my silver cell at the moment so I will not have any idea as to what was taken up with the silver for a week or two.
But the goop has given a very strong solution when processed with A.R.
I dropped the first strong batch and got a very fine black precipitate with S.M.B..so fine in fact that it ran through equiv. Whatman GF/D filter paper like it was a sieve.
Stanton test was black before dropping with a yellowish/orange hint around the sides and clean after.
So I have just had to let it settle and decant the excess fluid and put it back into A.R. to see if it will drop in a nice form when I drop it again.
But the gunk is still giving up metals into A.R. after 24hrs.(heated for four hours left over night flushed and re run-with fresh heated A.R.).
It closely resembles the silver cell slime I have been saving for later when dropped so I may just have to put them all together to pass on to some one better equipped for sorting out a jumble of platinum group metals.
Should every thing drop out of solution with S.M.B.?
It was as if I had used Ammonium Chloride instead of S.M.B The same very fine black precipitate.I was hoping to get a better separation ,I.E. positive Stanton test for P.G.M.'s after S.M.B..
Well got my gourd working ..Any ideas??