In this video I demonstrate two methods for making the useful chemical potassium alum from two types of drain cleaner (sulfuric acid type and potassium hydroxide type) along with aluminum foil.
The second method turned out to be the superior one, sorry I didn't put it first but I did my audio recording a bit out of order in making this video.

In any case make sure to take proper precautions before attempting anything seen in this video. The chemicals used are extremely caustic and corrosive, and can cause severe injury if handled improperly.
Enjoy!
PS: Very Early typo, Y variable indicates trivalent metal, I accidentally typed "X" twice

Karter Scientific Webpage: https://www.kartersci.com

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