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.

According to information sent along by a press contact, here's the list: Allura Red, Aluminium ammonium sulphate, Aluminium potassium sulphate. Aluminium sodium sulphate, Aluminium sulphate ...

Moreover, swelling agents made of aluminum potassium sulfate or aluminum ammonium sulfate cannot be used in fermented flour products. Chen Junshi, a researcher with the National Expert Committee ...

Alum (fitkari) is a versatile mineral salt used traditionally for water purification, wound healing, oral care, natural ...