Ok – I tried a forum search using “picture fixer solutions” & got a no match
I picked up 2 containers of this stuff today from a guy that used to have a 1 hour photo shop & his photo developing machine would recover the metals from the fixer solutions.
One container is 7 lb of the black lump on the left that looks like charcoal & crumbles real easy & melts to the metal in the center
I put this piece of metal in a shot glass with nitric diluted 50/50 & no visible reaction after 5 minutes – so took it out, washed it off & tried HCL – again no visible reaction after 5 minutes – took it out & washed it off & tried AR & again no visible reaction after 5 minutes. This was all done at room temp
The fixer solutions this stuff was recovered from was primarily color pic solutions “some” black & white. I believe chrome was used in color fixers & he mentioned nickel. Also on page 87 of Hokes, she says – “several other metals (besides Ag) including Au, Pt, Fe, Pd, U, & Se find employment in photography, printing paper, & toner solutions. She talks about several ways of recovering the metals from solutions – but I already have the recovered metals – If I had the solutions I could test with stannous & figure out how to approach recovery – so my problem is how to get it back into solution for testing & recovery.
I have 7 lb of the black charcoal like stuff (on the left) & 7 ½ lb of the metal chunk on the right (I haven’t run any test on the chunk to the right yet)
At this point I am thinking I need to inquart with ether copper or silver – then go with nitric – then AR – but thought I would throw it out here to see what the rest of you could suggest.
Kurt
I picked up 2 containers of this stuff today from a guy that used to have a 1 hour photo shop & his photo developing machine would recover the metals from the fixer solutions.
One container is 7 lb of the black lump on the left that looks like charcoal & crumbles real easy & melts to the metal in the center
I put this piece of metal in a shot glass with nitric diluted 50/50 & no visible reaction after 5 minutes – so took it out, washed it off & tried HCL – again no visible reaction after 5 minutes – took it out & washed it off & tried AR & again no visible reaction after 5 minutes. This was all done at room temp
The fixer solutions this stuff was recovered from was primarily color pic solutions “some” black & white. I believe chrome was used in color fixers & he mentioned nickel. Also on page 87 of Hokes, she says – “several other metals (besides Ag) including Au, Pt, Fe, Pd, U, & Se find employment in photography, printing paper, & toner solutions. She talks about several ways of recovering the metals from solutions – but I already have the recovered metals – If I had the solutions I could test with stannous & figure out how to approach recovery – so my problem is how to get it back into solution for testing & recovery.
I have 7 lb of the black charcoal like stuff (on the left) & 7 ½ lb of the metal chunk on the right (I haven’t run any test on the chunk to the right yet)
At this point I am thinking I need to inquart with ether copper or silver – then go with nitric – then AR – but thought I would throw it out here to see what the rest of you could suggest.
Kurt