[chbot] Ferric Chloride

Robin Gilks robin at gilks.org
Mon Dec 7 06:21:50 GMT 2020

> Is this Ferric Chloride still available in NZ ?
> I have some ammonium persulfate but FC works at room temperature which
> makes
> it easier.
> Cheers Wallace

I had reasonable luck with hydrochloric acid (from pool shop - Ph
adjuster) and copper sulphate (PGG Wrightson - fungicide).

Careful how you store the mix though as the fumes (open top etch tank)
made all the steel in my garage go rusty.

Robin Gilks

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