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Re: [Orchid] Checking for Silicon in alloys  
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From: John Burgess
Date: Wed Oct 01 01:15:07 2003
 
     
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>     Just wondering, is there any kind of chemical test for the
>     presence of silicon in these alloys?  Sure would be nice to
>     identify these pieces before putting the torch to them. >David L.
>     Huffman 

    G'day.    So far as I know there is no simple test for the presence
    of silicon.    The only methods I am aware of are completely out of
    the question for the ordinary person.   There are several methods
    these days, but they all use extremely expensive machines, which
    include instruments like Xray crystallography, mass spectrometers, UV
    spectrometers,  atomic absorption spectrometers, etc all of which are
    well out of the price range of the average jeweller, and it simply
    wouldn't be worth the cost of having silicon alloys professionally
    analyzed.   Surely the suppliers should be able to tell one what they
    sell? 

-- 
Cheers for now,
John Burgess;   johnb AT ts.co.nz of Mapua, Nelson NZ


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