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Author: Subject: Does Diatomaceous Earth Absorb Dissolved Salt?
artemov
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[*] posted on 18-11-2020 at 07:37
Does Diatomaceous Earth Absorb Dissolved Salt?


I made some lead acetate using lead shots, AcOH and H2O2. The solution seems a bit cloudy (antimony?).

I am thinking of using food grade DE to filter the solution. Would the DE somehow absorb the lead acetate out from the AcOH? I know that DE can absorb "odours" from the air, sort of like activated charcoal ... sorry if this doesn't make any sense.

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chemship1978
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[*] posted on 18-11-2020 at 08:29


The way activated carbon absorbs some molecules is via it's adsorption properties. You might lose only a tiny amount of your salt, but if you're looking for something to filter out the cloudiness and not coarse precipitate, I recommend Celit. It's basically the same thing you have, diatomaceus earth, but very finely grounded.
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Boffis
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[*] posted on 18-11-2020 at 09:08


I often use diatomaceous earth to filter cloudy solution, usually as an aid to active charcoal. This mixture even handle colloidal stuff!

I don't think you will loose much lead acetate using DE.
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CharlieA
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[*] posted on 18-11-2020 at 17:15


Diatomaceous earth is silica. I would not expect it to absorb an appreciable of anything.
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