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glass Question
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Posted by: Henry

03/10/2004, 22:06:32

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Glass is made from predominantly sand (silica) how does this solid become clear in the finished process. Is there a chemical change under heat?






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Re: glass
Re: glass -- Henry Post Reply Top of thread Forum
Posted by: astroracer

03/11/2004, 14:32:33

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Silica in it's pure form is clear. Sand has impurities in it which gives it "color". Once the impurities are removed you end up with a clear silica... Which makes excellant glass.






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