Action and Uses: Caustic and rubefacient. In the form of vinegar, is antidote to alkalies.

Acidum Aceticum Dilutum (Acid. Acet. Dil.), Diluted Acetic Acid, U.S.P.—CH3COOH (about 6%).

Dosage: 2 Cc. or 30 minims.

Acidum Aceticum Glaciale (Acid. Acet. Glac.), Glacial Acetic Acid, U.S.P.—CH3COOH.

A colorless liquid, with a vinegar-like odor and a pungent, sour taste. Miscible with water or alcohol.

*Acidum Benzoicum (Acid. Benz.), Benzoic Acid, U.S.P.—C6H5.COOH. Obtained from benzoin or prepared synthetically.

Lustrous, almost colorless scales or needles, with a pungent, acid taste. Slightly soluble in water (1:275) and freely soluble in alcohol (1:2.3); also readily soluble in solutions of alkali hydroxides or carbonates with the production of alkali benzoates.

Action and Uses: Mild antiseptic and diuretic.

Dosage: 0.5 Gm. or 8 grains (U.S.P.), best given in the form of soluble benzoates (see under Sodii Benzoas).