Grelko
Well-known member
Does this sound like everything will work properly? I haven't refined anything in a while, so I'm just making sure I still know what I'm doing.
I'm not worried about how long it'll take.
I'm not using a bubbler or H2O2. Just HCl by itself.
If I file off a bit of old green copper from a buss bar/pipe an put the filings into HCL, it'll make CuCl2. "The copper I'm using was clean, it just oxidized from sitting there a while.
The first beaker will have gold fingers and pieces of plated boards in it. None of these pieces have solder or components on them.
If I have enough solution and leave it there long enough (months), everything should come off of the board right? (I'll be stirring it now and then) The green mask should come off, since the copper underneath will be dissolved also.
It's possible that some of the green mask won't be removed, since I'm not using a bubbler. There isn't any gold plating under the green mask on these boards, so I'm not worried about it that much.
I'll check with stannous to be sure, but there shouldn't be any dissolved gold since I didn't add a bubbler or oxidizer.
After filtering and rinsing, I'd be left with the gold foils and green mask. Dissolve the foils with HCl/Cl and filter. The green mask will be left.
Drop the gold with SMB and re-refine.
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Beaker two will have gold pins. The pins don't have solder or anything else on them.
I'm putting them into a solution of "pre-made" CuCl2, just like the first beaker and letting them sit for a couple weeks or months also.
I'm going to stir the solution once in a while, and filter out the foils when I start seeing a bunch floating around, until the pins look like there isn't any more gold on them.
I shouldn't need to completely dissolve the pins this way, since there isn't any oxidizer.
There should just be foils left and not the black mud from gold cementing out, because the gold isn't getting dissolved. (I'll be checking with stannous to be sure)
Afterwards, I'll dissolve the foils with HCl/Cl, then filter, rinse and drop the gold with SMB and re-refine.
If I wanted to speed this up a lot (and actually work on it for a day or two), I could just do all of this in a crockpot on low/medium with a bubbler, but I've been busy lately.
Edit 2x - spelling
I'm not worried about how long it'll take.
I'm not using a bubbler or H2O2. Just HCl by itself.
If I file off a bit of old green copper from a buss bar/pipe an put the filings into HCL, it'll make CuCl2. "The copper I'm using was clean, it just oxidized from sitting there a while.
The first beaker will have gold fingers and pieces of plated boards in it. None of these pieces have solder or components on them.
If I have enough solution and leave it there long enough (months), everything should come off of the board right? (I'll be stirring it now and then) The green mask should come off, since the copper underneath will be dissolved also.
It's possible that some of the green mask won't be removed, since I'm not using a bubbler. There isn't any gold plating under the green mask on these boards, so I'm not worried about it that much.
I'll check with stannous to be sure, but there shouldn't be any dissolved gold since I didn't add a bubbler or oxidizer.
After filtering and rinsing, I'd be left with the gold foils and green mask. Dissolve the foils with HCl/Cl and filter. The green mask will be left.
Drop the gold with SMB and re-refine.
------------------------
Beaker two will have gold pins. The pins don't have solder or anything else on them.
I'm putting them into a solution of "pre-made" CuCl2, just like the first beaker and letting them sit for a couple weeks or months also.
I'm going to stir the solution once in a while, and filter out the foils when I start seeing a bunch floating around, until the pins look like there isn't any more gold on them.
I shouldn't need to completely dissolve the pins this way, since there isn't any oxidizer.
There should just be foils left and not the black mud from gold cementing out, because the gold isn't getting dissolved. (I'll be checking with stannous to be sure)
Afterwards, I'll dissolve the foils with HCl/Cl, then filter, rinse and drop the gold with SMB and re-refine.
If I wanted to speed this up a lot (and actually work on it for a day or two), I could just do all of this in a crockpot on low/medium with a bubbler, but I've been busy lately.
Edit 2x - spelling