What is silica gel?

BrainStuff

English - February 02, 2009 18:00 - 1 minute - 1.63 MB - ★★★★ - 1.6K ratings
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Everyone's familiar with those little packets of silicate gel, found in thousands of products -- but what exactly do they do? Check out this HowStuffWorks podcast and learn more about silica gel.

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