There was a sizzle, and smoke curled up as the acid etched channels in the material.

The hydrochloric acid dissolves and/or etches this layer leaving a tarnished look.

Needles lanced my lips, and acid etched my throat.

As the acid etches the surface, the oil adheres to the edges of the exposed area.

After a certain time, the acid etched the fine lines into grooves in the zinc, leaving the remaining parts of the disc untouched.

It also doesn't stain your teeth because the acid etches your teeth.

The hydrochloric acid etched through the layer of steel housing the phosphorus, which ignited the moment it came in contact with oxygen.

About the only gem that stomach acid could etch would be a pearl.

The acid could also etch the pool walls and corrode the metal fittings in the circulation system.

We use an acid to etch design on daggers and ornamental metals.