The infamous brown acid at Woodstock, source of so many bad trips, did not make the grade.

The remaining acid only makes the nitroglycerin more unstable than it already is.

It was good tea, the doctor had to admit, but the acid in the air was making his eyes water.

The acid from the bottle made a second and even more satisfactory test.

"The acid in the lemon makes the battery go."

Tungsten dipped in any strong acid makes an excellent mark on it.

Sulfuric acid, for example, can make paper turn black!

The acid made a strong solution in all the top soil.

"The acid in the citrus balances out the sugar and makes it refreshing."

A second problem is that the stearic acid makes the paper brittle.