Things You'll Need
Instructions
Place the alloy in a tub of nonreactive plastic. Polypropylene is suitable for most acids, but consult information on the suitability of containers to particular acids (see Resources). Place the tub inside a fume cupboard that is joined to the ventilation system of the building.
Select an acid that is suitable for dissolving the metals you want to dissolve (see Resources). Activate the fume cupboard. Put on all protective equipment, including skin, eye and breathing protection.
Pour the acid carefully over the metal object. Close the fume cupboard. Watch the reaction take place. If the reaction ceases before the dissolving is complete, then add more acid.