Yeah, Ferric Chloride sucks!

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Yeah, Ferric Chloride sucks!

Postby Ian » Tue Nov 05, 2013 11:19 pm

It's murky, dirty, takes ages and you keep on having to pick out the PCB to see if it's done yet.

A guy who owned an electronics shop told me the solution ... see what I did there? Solution.... oh never mind.

1 part water (I used tap water)
1 part hydrochloric acid
1 part 30% hydrogen peroxide (which apparently is the catalyser) (you can get that from Boots Chemist!)

It's clear, it fizzes the copper off the PCB before your very eyes and it gives off lots of nice and poisonous gas.

Now someone, well-versed in chemistry should be able to tell us exactly what that gas is?

Do I need to say wear goggles and do it in a well ventilated area?

I didn't but hey, that's me.

Be ready to run the PCB under the cold water tap as soon as it's done or it'll keep etching.
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