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Thread: Ferric Nitrate Disposal

  1. #1
    Join Date
    Nov 2016
    Location
    Glasgow
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    Default Ferric Nitrate Disposal

    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?

  2. #2
    Join Date
    Dec 2009
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    Central London
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    Exhausted ferric nitrate is a nasty cocktail and very caustic. Check the provisions of your local council online for collecting hazardous solutions. Dennis.

  3. #3
    Join Date
    Nov 2016
    Location
    Glasgow
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    Default

    Thanks Dennis. Are there any other solutions I could use for this job which are maybe a bit less hazardous?

  4. #4
    Join Date
    Dec 2009
    Location
    Central London
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    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.

  5. #5
    Join Date
    Jan 2016
    Posts
    5

    Default

    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

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