Acetic Acid, systematically named ethanoic acid, is a colorless liquid organic compound. When undiluted, it is sometimes called glacial acetic acid. It has a distinctive sour taste and pungent smell. It is produced as a precursor to polyvinyl aceate and cellulose acetate. Although it is classified as a weak acid, concentrated acetic acid is corrosive and can attack the skin. It is an important chemical & reagent, used primarily in the production of cellulose acetate for photographic film, polyvinyl acetate for wood glue, and synthetic fibres and fabrics.
Acetic acid is the second simplest carboxylic acid (after formic acid) and consists of two small functional groups, an acetyl group and a hydroxyl group.