Purchased a quart of hydrophobic fumed silica from ebay a while ago, this product isnt on ebay anymore and it was superb for drying cdc anybody know where i can get some more

It's available here. As their website says "Recently we've had lots of 1 quart purchases of our hydrophobic (water repelling) fumed silica. We thought this odd as the shipping on one quart is about as much as the product. Turns out that fly-fisherman have been using it (successfully, we assume) to 'dip' their flies into so that they 'act' more like real insects on the surface of the water! A quart apparently is a lifetime supply. We're probably the only '1 quart source' anywhere."

Their ordering procedure for outside of the US looks a little complicated though.

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Its probably also available from chemical companies such as sigma-aldrich

part no S5130-25G http://www.sigmaaldrich.com/ or search for fumed silica.

I suggest you make sure you look at the materials safety data sheets (MSDS) which these companies produce (lhs on the sigma page) as these explain some of the hazards. Although it looks innocuous very fine powders such as these can be hazardous.

RogB

Interesting

sigma aldrich are based in Irvine, dont know if its possible but for those members close enough you may be able to pick up from the factory, its the big grey building next to tesco.

Tom

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