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
[Non-text portions of this message have been removed]
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
[Non-text portions of this message have been removed]