[Jewelry making - Article 00633] - Re: [Orchid] Acidic environment in the studio

[Greg DeMark]

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Noel,

>     I use about half a pound in a standard size crock pot. 

    I used sparex for over 30 years until several months ago when I
    switched over to Citric acid. 

    I purchased a small size crock pot from Wal-Mart which I think is 1
    1/2 quarts and a 4oz container of Citric Acid from the Health Food
    store. Never having used citric acid before i was not sure how much
    to mix so I added 2ozs. to the crock pot with very hot water. 

    To do an experiment I cast up some small trees of jewelry using
    scrap sterling silver that had been used many times so I expected
    they would come out black. 

    I pickled these castings with the 2ozs of Citric acid and they
    cleaned up as well as with the Sparex. 

    I am sure you have far more experience with this than I do but you
    may wish to use less citric acid with your next batch to see how it
    works for you. 

Have a great day
Greg DeMark
www.demarkjewelry.com
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