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#2 2013-04-17 21:09:51
- technoguyx
- Scratcher
- Registered: 2008-10-18
- Posts: 1000+
Re: printed circuit boards
Cool; I only experiment in a cheap plugboard. What are you etching them for?
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#3 2013-04-20 01:59:48
- dantefrizzoli
- New Scratcher
- Registered: 2013-04-19
- Posts: 26
Re: printed circuit boards
After reading this message, I clearly see that I am unfamiliar with much terminology that you guys use. Where is a good resource to get caught up. Is there a glossary somewhere?
Thanks in advance!
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#5 2013-04-25 21:15:03
Re: printed circuit boards
dantefrizzoli wrote:
After reading this message, I clearly see that I am unfamiliar with much terminology that you guys use. Where is a good resource to get caught up. Is there a glossary somewhere?
Thanks in advance!
Look up make a pcb on google. 
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#7 2013-04-25 23:12:19
- Agentpieface
- Scratcher
- Registered: 2009-10-10
- Posts: 1000+
Re: printed circuit boards
i have no idea about this sort of stuff but i've heard of muriatic acid. how do you make it?
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#9 2013-04-27 19:14:47
Re: printed circuit boards
poemon1 wrote:
Agentpieface wrote:
i have no idea about this sort of stuff but i've heard of muriatic acid. how do you make it?
My method of muriatic acid etches slowly. Vinegar, and salt. Also hydrogen peroxide for oxides.
That's not really muriatic acid. 
Yeah you have H+ and Cl- in solution but their presence doesn't automatically impart some sort of stronger effect. I'm a little rusty on my chemistry so I'm not 100% on that but that's just my two cents.
(For those wondering, muratic acid is also known by its chemical name, hydrochloric acid, or hydrogen chloride (HCl) in solution. That's a strong acid, in constrast to vinegar, or acetic acid, which is by definition a weak acid.)
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#10 2013-04-28 08:24:30
Re: printed circuit boards
Harakou wrote:
poemon1 wrote:
Agentpieface wrote:
i have no idea about this sort of stuff but i've heard of muriatic acid. how do you make it?
My method of muriatic acid etches slowly. Vinegar, and salt. Also hydrogen peroxide for oxides.
That's not really muriatic acid.
An acid is based on how many H+ ions are in solution, and because HCl is a strong acid, more ions disassociate. Which reaction do you have in question here so I can answer that?
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#11 2013-04-29 12:22:10
Re: printed circuit boards
poopo wrote:
Harakou wrote:
poemon1 wrote:
My method of muriatic acid etches slowly. Vinegar, and salt. Also hydrogen peroxide for oxides.That's not really muriatic acid.
An acid is based on how many H+ ions are in solution, and because HCl is a strong acid, more ions disassociate. Which reaction do you have in question here so I can answer that?
No question. My point is that adding sodium chloride isn't going to affect the equilibrium between acetic acid and acetate + proton in any appreciable way unless there's an additional chemical effect that I'm missing. It doesn't increase the potency of the acid added.
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