I want to try etching at home, but I wondered how folk get rid of their used ferric nitrate. Is there some way it can be neutralised before disposal?
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I want to try etching at home, but I wondered how folk get rid of their used ferric nitrate. Is there some way it can be neutralised before disposal?
Exhausted ferric nitrate is a nasty cocktail and very caustic. Check the provisions of your local council online for collecting hazardous solutions. Dennis.
Thanks Dennis. Are there any other solutions I could use for this job which are maybe a bit less hazardous?
No, unfortunately not for silver. It is considered more benign than nitric acid, which anyhow you can no longer buy as a private person.
For base metals there is salt water etching using salt solution and a battery. https://www.google.com/search?q=salt...ient=firefox-b Dennis.
There is a discussion here about disposal, may be of some help. I cant post full link yet (not enough posts)
orchid.ganoksin.com/t/ferric-chloride-and-ferric-nitrate/16813/4