It turns out that a hot solution of alum (ammonium aluminum sulfate), which is available in the spice rack of your local supermarket, will dissolve the steel drill bit without reacting with the brass.

It turns out that a hot solution of alum (ammonium aluminum sulfate), which is available in the spice rack of your local supermarket, will dissolve the steel drill bit without reacting with the brass.

which applied the aluminum-sulfate treatments, the company applied two higher dose applications of alum in 2020 and a third lower dose in 2023. “Alum is a widely used chemical in wastewater and ...

chemically known as potassium alum or aluminum potassium sulfate, exhibits astringent properties when applied to the skin. Astringents work by causing proteins in the skin cells to coagulate ...

Serious adverse events may be caused by different constituents in a vaccine: the active antigen, an adjuvant such as potassium aluminium sulfate ... The most widely used aluminum-adjuvanted ...