If you have followed my last posts you may have read the H2O2 adding method is somewhat similar to what
you want to do. It may be helpful in making the starting solution (i'm not sure if your method will
work). I can't figure out why my etchant immediately starts working fast when new (only hcl h2o2 and
h2o) and plain hcl does work so slow. In which manner works the h2o2 generating CuCl2 (or Cu2Cl) from
plain Copper?
I really believe if you pour in some H2O2 you would get a useable solution immediately (Which can from
then be regenerated by air oxygen), but i don't know if you get CuCl2 by using the buildup on the air
exposed copper. I also don't understand why you should wait until "fumes" and air have done their work,
won't it produce the same think if startig the bubbler but faster?
You see my understanding of chemistry is quite poor but i really want to figure out how this works and
you can be sure i won't annoy you all.
kind regards
Stefan
∗ggg∗ i find it funny you make 12(twelve) liters of fluid by mixing 1 and 2 ;-) ...
please don't misunderstand me, i'm really curios about what will happen to your etchant...
please continue with the copper dissolving this way, it would be a really nice and cheap way..
13.04.2003 20:14:05, "grantfair2001" <
grant.fair@...> wrote:
>Last night I added 1 litre of HCl (30.5%) to 2 litres of distilled
>water to make 12 litres of 10% etchant (to start off with) in my
>plastic Coleman cooler tank. To this I added 1.8 kg of clean copper
>wire I had washed in dish detergent and hot water.
>
>Twelve hours later, the copper covered with the acid solution looks
>unchanged. About half the wire, which is pieces about 12" long bent
>into different shapes, (so the copper is a large jumble), sticks out
>of the solution. Most of this is covered by a pink coloured, hazy
>looking film.
>
>I don't know what to expect, but so far this is what I have noted.
>
>Grant
>
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