Homebrew PCBs

Well heck .. this one is all blow outta the water.
I went to the beauty supply place .. 
Theirs is 10, 20 and 30 VOL .. dangit .. 
AND .. to top that off it has other ingredients .. 
Best I could find was hydrogen peroxide , water , phosphuric acid.
Though thinking back on the older days of REAL Coke Cola .. 
I wonder if the phosphuric acid / H2O2 mix by itself would etch ? 
OK .. where is that fellow .. that was talking chemistry and molarity.
ok .. found his email .. JROD  .. Hope you pipe in here .. :)

Cant figure it out myself .. I did try .. need to learn more chemistry . 
Dont know if phosphuric acid is above copper on a redox table .. 

Oh well .. on to more studying .. and hope that JROD sees this
and after his laughing .. replies .. lol

Randy - N2CUA


 



________________________________
From: Randy S. <rj3819@...>
To: Homebrew_PCB <homebrew_pcbs@yahoogroups.com>
Sent: Sat, March 5, 2011 4:47:21 PM
Subject: [Homebrew_PCBs] Hydrogen peroxide mixing

  
I checked with the beauty shop in town .. 
they have 10 , 20 , 30 % peroxide.

I can get the 10 .. I have several bottles of 3%.

Can I mix equal amounts of say, 10% and 3%
and end up with , 6.5% ? after starting those
you tube video lectures on chemistry, I guess
it might not be the case .. though it is the same
chemical in this case.  

Randy - N2CUA





      

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