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Topic: New Etching Method (Read 3624 times) previous topic - next topic

wbegg

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Solder "Slugs" or pellets are not cheap either (£27 from amazon), I guess you could make your own by melting a load of solder into a small pot.


Yes, but it takes very little. I wad up non-resin solder, and melt it in a cup made of tin foil. VERY cheap. And it takes very little. A small slug (1" diameter) will last a few months if you build alot.

Cheers,
Will

timbit1985

Does anyone know what the NaCl does? I know it disassociates into Na+ Cl-, but what specifically is it doing? Generally the salts resulting from a strong acid and strong base (HCl + NaOH -->H20 +NaCl ) aren't terribly reactive.

What about the hydrogen peroxide? What is it doing in this reaction? Is it acting as an oxidizing agent or some such? I would have thought it was mostly the acetic acid in the vinegar that was doing the majority of the work. Anyone know whats goin on?

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