Homebrew PCBs

Ok i have put the mix into the maga-uk bubble etch tank pa104 and put the
air pump
on and after a short time the mix starts to froth up and the froth starts to
come over
the top of the tank! the air pump was only on for a few mins

Is this normal!! ??

Regards
Howard

On 29 March 2010 14:38, Howard Payne <howard_g7lqy@...> wrote:

> Sorry NOT cost effective
>
> Howard
>
>
>
> On 29 March 2010 14:37, Howard Payne <howard_g7lqy@...> wrote:
>
>> At $50 a go, i dont think it is cost effective, but prob will work
>>
>> Howard
>>
>>
>>
>> On 29 March 2010 14:31, Mark Lerman <mlerman@...m.com> wrote:
>>
>>>
>>>
>>>
>>> Do you think porous polyethylene rod would work as a bubbler? See
>>> <
>>> 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
>>> > >
>>> >
>>> >
>>> >
>>> >------------------------------------
>>>
>>> >
>>> >Be sure to visit the group home and check for new Links, Files, and
>>> Photos:
>>> >http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links
>>> >
>>> >
>>> >
>>>
>>>  
>>>
>>
>>
>>
>> --
>> 73's Howard G7LQY
>> GQRP: 12549
>> Loc: IO83UO
>> LARGE FILES TO: hjpayneg7@...
>>
>>
>
>
> --
> 73's Howard G7LQY
> GQRP: 12549
> Loc: IO83UO
> LARGE FILES TO: hjpayneg7@...
>
>


-- 
73's Howard G7LQY
GQRP: 12549
Loc: IO83UO
LARGE FILES TO: hjpayneg7@...


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