Sulfuric acid(h2so4) Filtering

[Oliver Lores]

Would “rock wool” work to filter the gold foils from an electrolysis stripping cell operation?
 

Paper filters are no good…

[chenbeier]

You have to use glass or ceramic material . Best is to use a vacuum fritte.

https://de.m.wikipedia.org/wiki/Fritte_(Filter)#/media/Datei%3ASintered_glass_funnel-02.jpg

 

[noquacks]

Regarding simple sulfuric acid either concentrated or even 25% v/v or stronger, I use glass wool. Packed in a plastic funnel, using gloves as the wool can cut into your skin and irritate.  But the sintered glass funnel above is a neater/cleaner approach. 

Edited October 21, 2021 by noquacks