the tests were done with pure aluminum sulfate (the right name for alum). If you buy alum at the store, it is likely to have potassium or other additives and that might change the results or even ...

This one right here is alum. This is potassium aluminium sulfate, and it's primarily used in things like leather tanning and dyeing and in fireproofing textiles. It's pretty strong stuff.

The potassium sulfate market is gaining momentum due to its increasing demand as a preferred fertilizer for ...