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aga
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Hello dlog.
It would be helpful if you could post the 'recipies' that you tried, i.e. weights, volumes, concentrations etc.
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aga
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24hrs has not done much with that mix.
The gold plating does appear to have been attacked a little, but hardly enough to make it useful.
deltaH's recipe worked much better.
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dlog
Harmless
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Hello Aga
I post a phot of it later. The Board is refusing to upload a 1Mb file.
I think they use another oxidazing agent like HNO3 or NaClO or something like this.
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aga
Forum Drunkard
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If you read the entire thread you'll see that gold was successfully dissolved in a known mixture.
Better to start there and improve on that formula by experimentation.
A lot of 'papers' and patents are total bollocks.
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diddi
National Hazard
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Location: Victoria, Australia
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I have been playing in this area for a while now and to be honest, unless you have access to tonnes (literally) of FREE scrap, and free chems, you are
wasting your time. it may be viable at a large scale if you can get up to about 7 grams per tonne, but I would be lucky to have a 2mm bead after tens
of hours cutting up and sorting etc, let alone the cost of reagents. on the up side I have enough basic copper carbonate to last a lifetime.
Beginning construction of periodic table display
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dlog
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Aga
Here my tests.
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dlog
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Sorry Aga. I cannot post photos on the post.
diddi...It is stimated that 1 tonn contains about 150-200g of Au(maybe a bit less). So I think worth the effort
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dlog
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Aga,
My tests:
Steanous chloride Test: N
obs:
Test 5
Acetic Acid: 2mL
HCl: 2mL
CaCl2: 1 M(1mL)
H2O2: 4 drops
Steanous chloride Test: N
obs: Very yellon in presence of IRON.
Test 6
Acetic Acid: 2mL
HCl: 1mL
CaCl2: 1 M(1mL)
H2O2: 7 drops
Steanous chloride Test: N
obs:
Test 7
Acetic Acid: 2mL
HCl: 0.5mL
CaCl2: 0.2 M(1mL)
H2O2: 3 drops
Steanous chloride Test: N
obs:
Test 8
Acetic Acid: 2mL
HCl: 0.25mL
CaCl2: 0.2 M(1mL)
H2O2: 3 drops
Steanous chloride Test: N
obs:
Test 9
Acetic Acid: 1mL
HCl: 1mL
CaCl2: 1 M(1mL)
H2O2: 3 drops
Steanous chloride Test: N
obs:
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dlog
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I missed some data but it is.
I would like to hear deltaH's oppinions about it
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dlog
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test sheet
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