Tony Smith wrote:
> Yes, that stuff cats pee in when your sock drawer is closed.
>
> I was wandering thru the supermarket the other when I noticed there's a
> silica gel version.  Apparently it works quite well as kitty litter, but I'm
> more interested in it as dessicant (aka little bags of 'Do Not Eat').  This
> stuff is crystal clear, not the brown clay stuff.
>
> It's cheap too, 2kg for under $AU10, say $2/lb for those who haven't
> progressed to metric yet.
>
> The only odd thing was the package stated 'the water will evaporate at room
> temperature, trapping the odors', but silica gel needs over 100 degree
> celcius to dry out.  It probably doesn't have the pink/blue indicator
> either, so big drama.  The crystals are bigger, less likely to be eaten I
> suppose.
>   
As far as I'm aware the "do not eat" is because the pink/blue is cobalt.
So your probably being "environmentally friendly" by using stuff without 
it ;->

I'm interested as silica gel is the feed stock for aerogel otherwise 
I'll have to try the agar based version.

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