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Silica

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Silica

Postby hurly » Mon Jul 04, 2005 5:02 pm

Sometimes when you buy a product, there's usually a little white bag (closed) with SILICA (GEL). What exactly is it and what does it do?

It says "Throw away, do not eat" :)

I found the bag inside my exercise (iron pumping) kit...
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Postby James » Mon Jul 04, 2005 5:10 pm

It absorbs water.
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Postby Dr.Stein » Thu Jul 07, 2005 2:21 pm

Yes, it is an absorbent. It acts to absorb water to prevent moist environment. Moisture will simply destroy things.
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Postby chemistry_freako » Sun Jul 10, 2005 3:02 pm

yeap - silica gel's a dessicant (meaning it absorbs water vapour from the air so as to prevent/ minimise food spoilage) as it absorbs water readily due to it's high porosity.
They also often come with an 'indicator' (e.g. anhydrous cobalt II chloride) which has a different colour when anhydrous, and when hydrated
化学は、最高です

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