[Jewelry making - Article 00848] - [Orchid] Etching copper with ferric chloride

[Jeanette Hyde]

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    I asked some time ago about chemicals for etching I was using nitric
    before and many folk recommended Ferric chloride and ferric nitrate
    instead. I saved all the replies to use when I was feeling brave,
    then just when I need the information the hard drive on my computer
    goes kaput. 

    The ferric chloride I bought is already a solution ay 50% and the
    ferric nitrate is in crystal form at 98%. I have no idea of the
    quantities of water to mix with them 

    I would be really grateful for any advice. 

Cheers
Jeanette
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