Are there gel-like and solid-like materials with high diffusivity?

scientizscht · « **on:** 01/12/2023 22:59:00 »

Hello!

Are there gel-like and solid-like materials that when they touch (or be immersed into) a water solution, will allow solutes from the water solution to migrate and diffuse into them?

Thanks!

Bored chemist · « **Reply #1 on:** 02/12/2023 00:26:32 »

Toast?

scientizscht · « **Reply #2 on:** 03/12/2023 02:15:18 »

Thanks but I think you confuse absorption with diffusion?

paul cotter · « **Reply #3 on:** 03/12/2023 09:23:03 »

Toast will allow diffusion of solvents and ions but BC should have said "unbuttered toast".

Bored chemist · « **Reply #4 on:** 03/12/2023 12:23:51 »

Quote from: scientizscht on 03/12/2023 02:15:18

Thanks but I think you confuse absorption with diffusion?

Nope, I understand the difference.

alancalverd · « **Reply #5 on:** 03/12/2023 16:35:35 »

The answer is "probably not", though you can use mercury to extract some metals from mixtures. However you can separate solute from solvent in small quantities by chromatography - the solvent diffuses more quickly than the solute and leaves behind an increasing concentration of solute.

paul cotter · « **Reply #6 on:** 04/12/2023 17:55:01 »

Well then how about burnt toast? The resultant pyrolytic graphite might just do the job.

Zer0 · « **Reply #7 on:** 04/12/2023 19:47:38 »

@OP

This is gonna sound stoopid, i know, but still...

Candy Floss!

Also, the Temperature (t) Difference between the Solute & Solvent seems Paramount to me personally.

ps - how bout droppin an ice cube into boiling water?

Bored chemist · « **Reply #8 on:** 04/12/2023 20:13:48 »

If the OP had asked a better question then things like ion exchangers and this
https://en.wikipedia.org/wiki/Molecular_imprinting
Might be better answers- but he didn't.

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Are there gel-like and solid-like materials with high diffusivity?

scientizscht (OP)

Are there gel-like and solid-like materials with high diffusivity?

Bored chemist

Re: Are there gel-like and solid-like materials with high diffusivity?

scientizscht (OP)

Re: Are there gel-like and solid-like materials with high diffusivity?

paul cotter

Re: Are there gel-like and solid-like materials with high diffusivity?

Bored chemist

Re: Are there gel-like and solid-like materials with high diffusivity?

alancalverd

Re: Are there gel-like and solid-like materials with high diffusivity?

paul cotter

Re: Are there gel-like and solid-like materials with high diffusivity?

Zer0

Re: Are there gel-like and solid-like materials with high diffusivity?

Bored chemist

Re: Are there gel-like and solid-like materials with high diffusivity?

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