[Jewelry making - Article 01035] - Re: [Orchid] The use of Anhydrous Ammonia

[Peter B. Steiner]

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>        As a fire inspector, I am curious as to why a small jewelry
>     manufacturer would have Anhydrous Ammonia tanks.  I understand the
>     oxygen for welding and molding purposes, but don't know why the
>     Anhydrous Ammonia would be there.  Any suggestions?  

    Hi Laura, I can think of one -very- common use for Anhydrous Ammonia.
     (There may well be others.)  The best compound I've ever tested for
    cleaning jewelry is prepared from an equal mixture of one part
    Ammonia, one part strong liquid detergent, and one part Isopropanol. 
    (This solution should never be used on pieces which contain porous,
    fragile or organic gems.) 

    Hope this sheds some light on your question...  :-) 

Peter


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