[Jewelry making - Article 00355] - Re: [Orchid] Etching Solution for Brass and Silver

[Sandra Noble Goss]

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Hi R,R,

    I use Ferric Chloride to etch copper, brass and bronze. I use Ferric
    Nitrate to etch sterling silver. These chemicals are often referred
    to as "non-acid" and "non-toxic" etchants. But they are corrrosive
    salts - so much be treated with caution and care. From what I read,
    there are no appreciable dangerous fumes from either etchant. If you
    are interested I have notes on my website about etching with ferric
    chloride. Ferric nitrate works much the same way only seems to take
    much longer to etch silver. 

    http://makersgallery.com/goss/etch.html 

    You might also search online for the name Keith Howard. He is a
    printmaker who has done a lot of research on non-toxic etching and
    printmaking. Also search the Orchid archives for "Edinburgh Etch" -
    an etchant using ferric chloride with citric acid added. 

Sandra

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