Do you think porous polyethylene rod would work as a bubbler? See
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http://www.smallparts.com/Polyethylene-Porous-Diameter-Average-Microns/dp/B000FN1FCY?ie=UTF8&qid=1269869358&sr=1-14&pf_rd_r=151FSQ0N41GE7V0WYX7V&pf_rd_m=A2LPUKX2E7NPQV&pf_rd_t=301&pf_rd_i=0&pf_rd_p=493388211&pf_rd_s=center-3>
Mark
At 08:24 AM 3/29/2010, you wrote:
>You don't need to add more copper. The dark green is cuprous chloride.
>Add more H2O2 or bubble air through it to convert it to cupric chloride.
>It will turn a lighter green as it converts. You may need to add acid if
>it doesn't etch very well. IME bubbling air through it takes quite a
>long time. You need fine air bubbles like you get from an air stone but
>air stones disintegrate in the acid.
>
>Les
>
>Howard wrote:
> > Hi
> > I have been doing etching with HCI (Spirits of salt 32%)
> > and H202 (6%) in a mix of 1 part HCI to 1 part H202, in small
> > amounts (.5ltr), after etching i then put the acid into a 3ltr
> > bottle, now the bottle is full of medium to dark green stuff!
> >
> > So now i would like to make use of it to make CuCI.
> > Now i think that i need to add some copper to the mix and pump
> > some air in.
> >
> > I have a Mega-UK type of tank with a built in air pump and heater
> > it holds about 5ltrs. Could i just put the 3ltrs of used mix into
> > the tank, add some copper(how much?) and turn on the air(how long for?)
> >
> > When will i know when it is converted to CuCI ?
> >
> > Hope that someone can put me right on this
> >
> > Regards
> > Howard
> >
>
>
>
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