[Jewelry making - Article 00870] - Re: [Orchid] Etching copper with ferric chloride

[Alma Rands]

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Jeanette,

    Just remember that Ferric chloride is used for copper, and the
    Ferric nitrate for silver. Use the Ferric chloride as you already 
have
    it in solution form. No need to dilute. 

    Ferric nitrate is mixed with water until it is the color of strong
    tea. I just pour out the amount of water I will be needing, then keep
    adding the ferric nitrate until it gets to the color of strong tea.
    If it seems to be too weak, I just add some more crystals. 

    You might check through the Orchid Archives as there is a wealth of
    information on using both of these etching mordants. 

Alma Rands
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