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.

A research team at Clarkson University recently published a study about a plant based alternative to traditional chemical ...

Serious adverse events may be caused by different constituents in a vaccine: the active antigen, an adjuvant such as potassium aluminium sulfate (alum), a conservative agent such as thimerosal ...