Fantasma4500
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Copper hydroxide electroplating
i just noticed by scrubbing some sandpapered titanium with copper hydroxide, then using the titanium as cathode that it turned the copper hydroxide
into copper oxide and copper metal
i thought it was gonna come off by touch, but it didnt, it adheres very well and it forms in a second or less at just 12V1A
this may be possible with other hydroxides, my idea is that the hydroxide is directly reduced to metal, maybe submerging a cathode into a suspension
of a metal hydroxide could do
i came across this when i was fooling around with a failed electrolytic dissolution setup for copper and a toothbrush- the way science was meant to
be.
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zerodan
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Quote: Originally posted by Antiswat  | i just noticed by scrubbing some sandpapered titanium with copper hydroxide, then using the titanium as cathode that it turned the copper hydroxide
into copper oxide and copper metal
i thought it was gonna come off by touch, but it didnt, it adheres very well and it forms in a second or less at just 12V1A
this may be possible with other hydroxides, my idea is that the hydroxide is directly reduced to metal, maybe submerging a cathode into a suspension
of a metal hydroxide could do
i came across this when i was fooling around with a failed electrolytic dissolution setup for copper and a toothbrush- the way science was meant to
be. |
What did you use as the anode?
I don't think you need to cover the cathode with Cu(OH)2
I had a similar thing happen when trying to remove copper from carbon electrodes in brine bath.
There was a lot of Cu(OH)2 but my Ti cathode turned brown in certain places,
it looked like a good coating, no flaking at all.
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wg48temp9
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| Quote: Originally posted by zerodan | [
What did you use as the anode?
I don't think you need to cover the cathode with Cu(OH)2
I had a similar thing happen when trying to remove copper from carbon electrodes in brine bath.
There was a lot of Cu(OH)2 but my Ti cathode turned brown in certain places,
it looked like a good coating, no flaking at all. |
I found the simplest and cleanest method of removing the copper coating on carbon gouging rods is to peal it off in one helical strip about 6mm wide.
You adjust the direction of the pull either up or down in the direction of the rod length to control the width of the strip.
I am wg48 but not on my usual pc hence the temp handle.
Thank goodness for Fleming and the fungi.
Old codger' lives matters, wear a mask and help save them.
Be aware of demagoguery, keep your frontal lobes fully engaged.
I don't know who invented mRNA vaccines but they should get a fancy medal and I hope they made a shed load of money from it.
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Fantasma4500
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Posts: 1681
Registered: 12-12-2012
Location: Dysrope (aka europe)
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i believe i was attempting to create a solution of copper salt with copper anode and stainless cathode
turns out i would need to add in a bunch of acid, but i ended up using the copper that electrodeposited with some H2O2 to react with acid, went quite
fast and hot, nurdrage has a cool video on making copper sulfate where he did some sneaky tricks to contain the copper
i got some vague success making CuO using NaOH but it seemed to just oddly stop producing CuO, very minor yield vs runtime, would be cool to just
straight up produce CuO from copper metal electrolytically, CuO is very reactive, reacts within seconds with HCl for instance
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mysteriusbhoice
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if you want to make copper salts with electrochem and no acids then you need to use ion exchange membranes. or simply a porous barrier which can be
made with PVC glue lathered onto some cleaning cloth and dried then perforated with a mix of 4 molar NaOH and quaternary ammonium salts from floor
cleaners.
Or you can actually make ion exchange resin from my instructional vid.
https://www.youtube.com/watch?v=tiMt4tIced8
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zerodan
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| Quote: Originally posted by Antiswat | i believe i was attempting to create a solution of copper salt with copper anode and stainless cathode
turns out i would need to add in a bunch of acid, but i ended up using the copper that electrodeposited with some H2O2 to react with acid, went quite
fast and hot, nurdrage has a cool video on making copper sulfate where he did some sneaky tricks to contain the copper
i got some vague success making CuO using NaOH but it seemed to just oddly stop producing CuO, very minor yield vs runtime, would be cool to just
straight up produce CuO from copper metal electrolytically, CuO is very reactive, reacts within seconds with HCl for instance |
What do you consider minor? I wouldn't expect kilos of this stuff but it's a more than suitable process.
I had a very fruitful run with copper anode aluminium cathode in NaCl.
The solution got filled with light blue/greenish paste in minutes.
Then just filter the solution and blast the precipitate with a torch, bam CuO.
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