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.

Request To Download Free Sample of This Strategic Report @- Apart from agriculture, ammonium sulfate finds applications in water treatment, pharmaceuticals, food and feed additives, and industrial ...

ammonium nitrate and ammonium sulfate – can be identified by heating a solution of the ions with sodium hydroxide. This reaction produces ammonia gas, as shown in the ionic equation below: ...